A nationally representative Education Week survey shows rifts among teachers, principals, and superintendents on hot-button social issues affecting K-12 education. See what they think about immigration’s effect on the nation’s schools, their views on charter schools, vouchers, and LGBT rights—and who they voted for in the 2106 presidential election.

Using common materials (spools, string, soap), students learn how a pulley can be used to easily change the direction of a force, making the moving of large objects easier. They see the difference between fixed and movable pulleys, and the mechanical advantage gained with multiple/combined pulleys. They also learn the many ways engineers use pulleys for everyday purposes.

View the full activity at TeachEngineering:
https://www.teachengineering.o....rg/activities/view/c

TeachEngineering has over 1,500 FREE lessons and activities. Visit http://www.TeachEngineering.org for more!

Music: How We Like It - Dan Lebowitz

【プレゼント】ChatGPTやGeminiやAntigravityマスターになる5つの巨大プレゼント！
110本の無料AIビジネス講座はメルマガ登録すると招待状が届きます！
https://utage-system.com/p/rXT....CQNYeaFfM?ftid=QbtkP
↓
リアル現場のAI動画の続編を見たい場合チャンネル登録！
https://www.youtube.com/@GPTMa....ster-Kenjisan?sub_co
↓
この動画を見た人には救世主！
↓
【デモ実践】天才がやってるGemini神連携？Gems × NotebookLMで右腕AIを作るワークフロー
https://youtu.be/dtc-FkiZKBs

===============================
アメリカIT起業ビジネス歴27年
オンライン1本でやって来た経験と
ChatGPT-5.2やGemini3.0と
1500時間以上トーク！

今回は、

「Gemini3.0 PRO」

「Antigravity」

「NotebookLM」

偶然に発見
ビジネス現場で使える、

「AIエージェント神連携」

デモ実践しました。

リアル現場の生々しい
データを公開しながら解説！

====================



【保存版】Gemini 3.0 Pro × NotebookLMで「Gemsの10ファイル制限」を突破する方法｜ビジネスマン必見の仕事効率化メソッド！
https://youtu.be/83bT8eF0vV8

【デモ実践】ChatGPT 5.1 vs Gemini 3.0｜ビジネスの「右腕」にするならどっち？
https://youtu.be/jVC9QTt3HPM

AIバブル崩壊は秒読みですが、2026年から爆発するビジネスモデルとは？｜アメリカIT起業27年のボクが本音で語る
https://youtu.be/Od9If-L-Avc

AIバブル崩壊は秒読みです！経営者が知るべき真実｜アメリカIT起業27年のボクが本音で語る
https://youtu.be/qZd_kvL_e1E

【97%が間違えてる】ChatGPTを"右腕"に育てる方法
https://youtu.be/T_GgEKn6jUY

【プロンプト実践】なぜChatGPTやGeminiは嘘を付くのか？2つのプロンプト実験で驚愕の結果が..
https://youtu.be/nT4swRS53EA

Sora 2無料公開の真実｜OpenAIが仕掛ける3つの戦略よりボクら日本人ビジネスマンが生き残る方法
https://youtu.be/iN2nUAM128Q

【デモ実践】OpenAI Sora2がGoogle Veo3を完全に超えた3つの理由！AIビジネスマン必見！
https://youtu.be/Rz9UzaDddi8

【デモ実践】NotebookLMで停滞期から4000人突破！ビジネスYouTube集客の秘密を公開！
https://youtu.be/zO9w-8u1oaA

【緊急】ChatGPT-5のスレッド引き継ぎをワンクリック終了させる方法！経営者やビジネスマン必見！
https://youtu.be/KaiWoqGak9I


==== コピーライティング本気で学びたい人向け======
歴12年で12000通以上のライティング経験
https://utage-system.com/p/73K....b2hdCRdJp?ftid=dT3fV


==== オンラインビジネス学びたい人 ===========
ボクが27年やってる
大好きをライフワークにする方法
（オンラインビジネス学びたい人向け）

「最低年収1000万円」

ドリームBiz研究所14日無料トライアル：
https://utage-system.com/p/lQd....pVzFNr8AV?ftid=6oCbl

大好きなコトを
ライフワークにする
3つのプレゼントとは？
==================
✅ デイリー音声（全14話）
✅ライブQ&A（全2回）
✅ドリームBiz実践ビデオ（全1回）


初めまして！アメリカ起業27年のケンジさんです。

ハリウッドで27年目の経営者が、
100％経験ベースでAIビジネスを語るチャンネル
（誰でも最低年収1000万円を目指せるヒミツ）

==== 自己紹介 ==================
■世界トップ0.01%のChatGPTマスター
■ ビジネス歴27年 ｜在米30年｜Bizプロデューサー
■1997年からオンラインBizひと筋
■ 株式会社Dream Creatives（アメリカ）
■ 教育で世界を笑顔にするが人生のビジョン


==== 使ってるスキル==============

1）次世代AIプロンプト
2）マインドセット
3）コピーライティング
4）パブリックスピーキング
5）コンテンツライティング
6）コミュニケーション
7）マーケティング



#Antigravity #Gemini #ChatGPT #Aエージェント #プロンプト #AI教育

Learn the difference between independent and dependent variables in research.
The independent variable can stand alone and is the variable that is being changed or manipulated.
The dependent variable is the variable that is being measured.
Learning the difference between these two types of variables can be very helpful in Science and any type of experiment.
I also cover how to graph these two types of variables.

Quiz Time | GK Trivia for Kids | General Knowledge Question and Answer for Kids @AAtoonsKids

Read on Web - https://www.aatoonskids.com/ge....neral-knowledge-triv
_______________________________________________________________

AAtoons Kids
play N learn
Website - http://www.aatoonskids.com

Facebook Page - https://www.facebook.com/aatoonskids1
Twitter - https://twitter.com/aatoonskids
_______________________________________________________________
Chapters
00:00 Intro
00:10 What is the normal boiling point of the water?
00:35 Which of the following is the largest plateau on earth?
01:10 Who is considered the father of the Indian Space Programm?
01:44 Which gas is filled in balloons to go vertically?
02:32 What acid is found in lemon?
03:22 What branch of zoology studies insects?
03:57 Approximately how many minutes does it take sunlight to reach earth?
04:31 Which of the following is Laughing gas?
05:04 Which of the following is not a mammal?
05:36 Which famous scientist discovered gravity?
06:18 In our solar system the asteroid belt is found between which two planets?
06:50 Which is the largest bone in the human body?
07:22 In which galaxy our solar system is situated?
07:48 In which country chess was invented?
08:09 Which is the biggest part of the brain?
08;46 In which Indian state the Sun Temple is located?
09:21 How many hearts does an octopus have?
09:42 Which is the fastest flying bird in the world?
____________________________________________________
#QuizTime_AAtoonsKids
#gk_for_kids
#GK_trivia
#Trivia_for_kids
#GK_Questions
#General_Knowledge
#AAtoons_Kids
@AAtoonsKids
____________________

In this fun and educational video, we'll be teaching you how to jumble words using 5 letters. This is a great way to learn how to read and spell new words, and it's also a great way to practice your articulation skills.

Learning how to jumble words is a great way to improve your reading and spelling skills. Not only will you learn new words, but you'll also improve your articulation skills. This video is perfect for kids who want to practice their reading and spelling skills, and parents who want to introduce their children to new words and improve their articulation skills. Be sure to check out this fun and educational video!
Five letters jumble words

Jumble words for kids | 5 letters jumble words | Kids vocabulary | @AAtoonsKids

_______________________________________________________________

AAtoons Kids
play N learn
Website - http://www.aatoonskids.com

Facebook Page - https://www.facebook.com/aatoonskids1
Twitter - https://twitter.com/aatoonskids
_______________________________________________________________

#jumblewords
#jumbledwords
#fivelettersjumblewords
#5lettersjumblewords
#kidsvocabularywords
#vocabulary
#vocabularyforkids
#kidseducationalvideos
#AAtoonsKids
____________________

-----------------------------------------------------------------------------------
Please SUBSCRIBE to our channel, LIKE, and SHARE to encourage us to share more useful and interesting knowledge.
請訂閱我們的頻道、點讚、分享，鼓勵我們分享更多有用又有趣的知識。
-----------------------------------------------------------------------------------
Welcome to watch our videos
歡迎觀看我們所創作的的其他影片
1）Basic Conversation 會話
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

2) Grammar 語法
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

3）English Speaking
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

4）Funny Jokes 笑話
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

5）Vocabulary 詞彙
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

6）English Idioms 英語成語
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

7）Revision Exercise 重温練習
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

8）Fun Games 趣遊戲味
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

9） Tongue Twister 繞口令
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

10）Writing a composition 作文
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

11) Story Telling 聽故事
https://youtube.com/playlist?l....ist=PLPoPxSDq_ePLrcK

They say money can't buy happiness, but who are they? Can money buy happiness? The answer is: sort of. While money may not be able to buy true happiness, lack of money can cause very real misery. Today, we look at the economics of happiness, and talk about how much money it takes to be happy. And where you should live to maximize your income-to-happiness ratio.


Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:

Mark, Eric Kitchen, Jessica Wode, Jeffrey Thompson, Steve Marshall, Moritz Schmidt, Robert Kunz, Tim Curwick, Jason A Saslow, SR Foxley, Elliot Beter, Jacob Ash, Christian, Jan Schmid, Jirat, Christy Huddleston, Daniel Baulig, Chris Peters, Anna-Ester Volozh, Ian Dundore, Caleb Weeks, and Sheikh Kori Rahman.

--

Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support Crash Course on Patreon: http://patreon.com/crashcourse

CC Kids: http://www.youtube.com/crashcoursekids

Or almost any garage - it's particularly good with fixed code gates and garages. Samy proposes other weaknesses with rolling codes.
This video was sponsored by LastPass: http://bit.ly/2oscAe9

I don't condone malicious hacking of gates, garages or other property. The point of this video was to discuss how it could be done using fairly basic technology like this toy that was originally intended as an instant messaging device. I learned a lot in making this video about how codes are sent and received, how they are encrypted or not encrypted. I found out how hard it is to execute in practice something which in principle doesn't seem that difficult.

Special thanks to Samy! His original videos on using the IM ME to open radio frequency garages and gates can be found here: https://www.youtube.com/user/s4myk
He's got a really cool channel so be sure to subscribe if you're interested in this stuff.

Music from http://epidemicsound.com "Critical thinking 2" "I think I was there" "Magnified X 3"

And music by Kevin MacLeod http://incompetech.com "Marty Gots a Plan"

Hank brings us the story of the electron and describes how reality is a kind of music, discussing electron shells and orbitals, electron configurations, ionization and electron affinities, and how all these things can be understood via the periodic table.

Watch this video in Spanish on our Crash Course en Español channel! https://youtu.be/N5apS0tE67c

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ

Table of Contents
Snobby Scientists 00:43
Great Dane/Bohr Model 01:57
Electrons as Music 04:13
Electron Shells and Orbitals 04:44
Electron Configurations 05:54
Ionization and Electron Affinities 08:17
Periodic Table 10:18

Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Instagram - https://www.instagram.com/thecrashcourse/

CC Kids: http://www.youtube.com/crashcoursekids

Phases of the Moon is a great introduction to the moon for kids. In this video we will learn all about the moon, the effects that it has on the earth, and how it orbits. We also talk about the first people who landed on the moon (Neil Armstrong and Buzz Aldrin). Last but not least we will learn all about and explain the different phases of the moon, including: New Moon, First Quarter Moon, Last Quarter Moon, Full Moon, Gibbous Moon, and Crescent Moon.

After finishing the video, head over to our site and download our free 9 page moon lesson plan. This lesson plan is build for 1st - 3rd grade and comes complete with instruction pages, activities, worksheets and more! Download here: https://learnbright.org/lessons/science/the-moon/

Thank you for watching and learning with us! We’re constantly releasing new content and videos, so click that “Subscribe” button and you’ll get notified.

Find and Follow Us Online:
Facebook: https://www.facebook.com/LearnBright/
Instagram: https://instagram.com/LearnBrightEducation
Pinterest: https://pinterest.com/LearnBrightEducation
YouTube: https://www.youtube.com/LearnBright
Website: https://learnbright.org/

*Teachers and Parents! Did you know? In addition to these great videos, we have also created a library of high quality and engaging lessons for your elementary aged student(s). Visit us, sign up for a free account, and instantly you'll have access to thousands of lesson plans, learning materials, teaching instructions, activities, and assignments that your kids will really enjoy! We hope to see you soon!

Browse our entire collection of Science lesson plans: https://learnbright.org/lessons/?filter_subject=science

#PhasesOfTheMoon
#MoonForKids

Pre-order our book YOU ARE AN ARTIST (which includes new assignments!) here: http://bit.ly/2kplj2h

This week we review some of the best responses to David Brooks's Art Assignment Ep. 4 -- Never Seen, Never Will: http://youtu.be/slCnZzsETVM.

To see more responses, visit our website or follow us on tumblr: http://theartassignment.com.

Many thanks to our participants who were featured:
-Jennifer: http://jenniferjamboree.tumblr.....com/post/8229205486
-Dafidaf: http://dafidaf.tumblr.com/post..../83115754756/18-4-14
-Laufey Haraldsdóttir: http://www.youtube.com/watch?v=Woloy-nnecM
-David Devine: https://www.youtube.com/watch?v=XSkZo8ROnRY
-Why-in-the-night-sky (father portrait): http://why-in-the-night-sky.tu....mblr.com/post/818452
-Nadia: http://nadiact1000.tumblr.com/....post/82149583863/the
-S.E. Vidrio: http://sethvidrio.blogspot.com..../2014/04/i-made-thin
-Abby: http://peppermintscribe.tumblr.....com/post/8176264898
-theemcyclopedia: http://theeemcyclopedia.tumblr.....com/post/8102833530
- iconiclly: http://iconiclly.tumblr.com/po....st/80930948194/for-t
- Leonie Connellan:http://onceuponaspacetime.tumb....lr.com/post/83184839
-Wes!ey Films and Projects: https://www.youtube.com/watch?v=3WJBNqhhBNk&feature=youtu.be

Pre-order our book YOU ARE AN ARTIST (which has new assignments!) here: http://bit.ly/2kplj2h

Join hosts Sarah Urist Green and John Green as they meet artists Douglas Paulson and Christopher Robbins and receive the first assignment of the series. We begin at Flux Factory in Long Island City, Queens, and follow Doug and Chris as they lead us on a journey to Meet in the Middle.

EPISODE 01 INSTRUCTIONS:

1. Pick a friend, and calculate the exact geographic midpoint between where the two of you live.
You can use http://www.geomidpoint.com/ or other websites to calculate your midpoint, or even-gasp-use a paper map.

2. Decide on a date and a time to meet there, and don't communicate until then.

3. Document your experience. You can do this however you'd like, using photos, video, text, drawings, or anything else.

4. Upload your documentation and share it online using whatever social media platforms you prefer, being sure to tag it with #theartassignment so we can find it. Your response to the assignment may be included in a future episode!

Learn more about Doug's work here: http://www.douglaspaulson.com/
And more about Chris's work here: http://www.christopher-robbins.com/
And more about Flux Factory here: http://www.fluxfactory.org/, @flux_factory

Follow us!
@artassignment
@PBSDS
@SWUSUG
@realjohngreen
@olsenvideo

This calculus video tutorial provides a basic introduction into the mean value theorem. It contains plenty of examples and practice problems that show you how to find the value of c in the closed interval [a,b] that satisfies the mean value theorem. For the mean value theorem to be applied to a function, you need to make sure the function is continuous on the closed interval [a, b] and differentiable on the open interval (a, b).

Introduction to Limits:
https://www.youtube.com/watch?v=YNstP0ESndU

Derivatives - Fast Review:
https://www.youtube.com/watch?v=5yfh5cf4-0w

Introduction to Related Rates:
https://www.youtube.com/watch?v=I9mVUo-bhM8

_____________________________
Extreme Value Theorem:
https://www.youtube.com/watch?v=Sx2lPZlnWfs

Finding Critical Numbers:
https://www.youtube.com/watch?v=Bp9EbV3COVA

Local Maximum & Minimum:
https://www.youtube.com/watch?v=WCq3sRzsJfs

Absolute Extrema:
https://www.youtube.com/watch?v=3wrXDw5ETh4

Rolle's Theorem:
https://www.youtube.com/watch?v=LHym1ARc2cE

________________________________
Mean Value Theorem:
https://www.youtube.com/watch?v=SL2RobwU_M4

Increasing and Decreasing Functions:
https://www.youtube.com/watch?v=Dyl7jPlJXOM

First Derivative Test:
https://www.youtube.com/watch?v=G5wlKltW7pM

Concavity & Inflection Points:
https://www.youtube.com/watch?v=OhqNbQi9QPk

Second Derivative Test:
https://www.youtube.com/watch?v=G8GAsYkZlpE

_________________________________
L'Hopital's Rule:
https://www.youtube.com/watch?v=Gh48aOvWcxw

Curve Sketching With Derivatives:
https://www.youtube.com/watch?v=JTVNUdL7sWs

Newton's Method:
https://www.youtube.com/watch?v=-5e2cULI3H8

Optimization Problems:
https://www.youtube.com/watch?v=lx8RcYcYVuU

_______________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathSc....ienceTutor/collectio

On this lesson, you will learn how to find the area of a shaded region by dividing a region into smaller rectangular shapes, find the area of each, and find the sum. (common core math practice for 3rd grade and 4th grade)

This lesson answers the question: How can I find the area of a shaded region? How is area additive? How can I solve real world problems involving area? Why is area measured in square units? How do I find the area of a rectangle? What is the formula for finding the area of a rectangle?

Our lessons are perfect for flipped classroom math teachers and students and for warm-up and exit ticket activities . This lesson is aligned with the 3rd grade common core math learning standards for math and the SAT math curriculum as well.

Be sure to join our mailing list at http://www.mashupmath.com

Our mission? Make math fun, engaging, and oh-so-easy for both you & your students. Our library of lesson materials is not only super-affordable but is also FREE to try out at http://numberock.com/letsrockmath.

Thank you for watching our mixed numbers and improper fractions song!

Three youths describe their experiences using Spice, also known as synthetic marijuana.

DOWNLOAD / DVD / LICENSE @ https://www.naturerelaxation.c....om/products/splendor | WATCH ON DEMAND (no Ads or Watermarks) @ https://watch.naturerelaxation.....com/videos/splendor | SPLENDOR: (noun) brilliant or gorgeous appearance; grandeur. | ABOUT THE FILM: The latest - and greatest yet- of our extended length ambient films, "Splendors of Nature" sweeps viewers on an all-day-long, breathtakingly beautiful & immersive audiovisual journey that dives deep into very heart of Nature. Featuring countless displays of grandeur from the around the world, this 12 hour long film offers a seamless relaxation experience that gently flows from one wonder to the next. From snowy mountain forests to swimming with colorful coral reef sea life; from the plains of Africa to the distant fjordlands of Iceland, this Nature Relaxation film truly has something for everyone - even space lovers! MORE INFO / CREDITS:

SPLENDORS OF NATURE is a compilation of multiple existing films from our collection, including:
Snowy Mountain Dreamland
Birds of the Rainforest
Flying Over Oahu
Redwood Forest Rejuvenation
Amazing Africa (The Animals Video was filmed by Robert Hofmeyr, ProArtInc, for more Animal videos please visit https://www.youtube.com/watch?v=3xPkwNu2o8g&t=12404s )
Flying Over Italy
Rainbow Reef Relaxation
Dolphin Voyage Relaxation
Islands from Above
Above the Tulip Fields
Rainbow Waterfall Relaxation
America's Beautiful West
Turtle Paradise
Above the Dolomites
Beyond Infinity

Coming Shortly to Nature Relaxation On-Demand. Try free for 30 days @ https://www.NatureRelaxation.com/Try

CREDITS: Featuring Cinematography by David Huting, Nick Skeyes, Noel Thomas, Peter Schneider, Tilo & Yvonne Kuhnast, Roman Khomylak, and Nimanty; learn more about the team of creators behind NRF @ https://www.NatureRelaxation.com/Team

MUSIC: By Relax Moods @ https://www.RelaxMoods.com (Also featuring Barry Kernachan, & Dominic Stone)

Get your free trial of MagellanTV here: https://try.magellantv.com/simplehistory It's an exclusive offer for our viewers: an extended, month-long trial, FREE. MagellanTV is a new kind of streaming service run by filmmakers with 2,000+ documentaries! Check out our personal recommendation and MagellanTV’s exclusive playlists: https://www.magellantv.com/explore/history


Become a Simple History member: https://www.youtube.com/simplehistory/join
Support us on Patreon: https://www.patreon.com/simplehistory

Copyright: DO NOT translate and re-upload our content on Youtube or other social media.

SIMPLE HISTORY MERCHANDISE

Get the Simple History books on Amazon:

https://www.amazon.com/Daniel-....Turner-%60/e/B00H5TY

T-Shirts

https://teespring.com/stores/s....imple-history-offici

Simple history gives you the facts, simple!

See the book collection here:

Amazon USA

http://www.amazon.com/Daniel-Turner/e/B00H5TYLAE/


Amazon UK
http://www.amazon.co.uk/Daniel....-Turner/e/B00H5TYLAE


https://www.facebook.com/Simpl....e-History-5494376751

https://twitter.com/SimpleHistoryYT


Credit:
Created by Daniel Turner

Narrator:

Chris Kane
https://vocalforge.com/

Music Credit:

'BTS Prolog' , 'Ghostpocalypse - 6 Crossing the Threshold' by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/)
Source: http://freepd.com/Unclassified/BTS%20Prolog
Artist: http://incompetech.com/

Sources:



Justin M. Harris, American Soldiers and POW Killing in the European Theater of World War II, Thesis, San Marco, 2009

Lorenzo, Ronald, The Puritan Culture of America’s Military, New York, 2016

Borch, Fred L. War Crimes in Sicily: Sergeant West, Captain Compton, and the Murder of Prisoners of War in 1943, The Army Lawyer, March 2013

Mikaberidze, Alexander, Atrocities, Massacres, and War Crimes: An Encyclopedia, Volume II, Santa Barbara, CA, 2013.

Massacre at Biscari: Patton and an American War Crime
James J. Weingartner
The Historian
Vol. 52, No. 1 (NOVEMBER 1989), pp. 24-39

2nd Channel: https://www.youtube.com/channe....l/UCPdc6bs3I8s6Y4QE_
Become a Simple History member: https://www.youtube.com/simplehistory/join
Support us on Patreon: https://www.patreon.com/simplehistory

Copyright: DO NOT translate and re-upload our content on Youtube or other social media.

SIMPLE HISTORY MERCHANDISE

Get the Simple History books on Amazon:

https://www.amazon.com/Daniel-....Turner-%60/e/B00H5TY

T-Shirts

https://teespring.com/stores/s....imple-history-offici

Simple history gives you the facts, simple!

See the book collection here:

Amazon USA

http://www.amazon.com/Daniel-Turner/e/B00H5TYLAE/


Amazon UK
http://www.amazon.co.uk/Daniel....-Turner/e/B00H5TYLAE


https://www.facebook.com/Simpl....e-History-5494376751

https://twitter.com/SimpleHistoryYT


Credit:
Created by Daniel Turner (B.A. (Hons) in History, University College London)