If you never saw it, ‘Connections’ is an old BBC show that explores the way seemingly random events come together to create vast changes.
Also, for pure fun, try Poul Anderson’s fantasy novel “A Midsummer’s Tempest.” The conceit is that Shakespeare was a great historian and everything he wrote about, including MacBeth’s witches and the clocks chiming in Rome was 100% accurate.
Put yourself back in the day. No TV or internet. Public spectacles were pretty much the only entertainment. Any kind of parade was a big deal. Ever heard the phrase ‘get on the band wagon?’ On election days the political parties used to have wagons with a band and beer that would drive around town to get people to the polls.
Now look at some old Nazi documentaries. Those masses of people throwing their arms out like that? That looks great.
https://youtu.be/3_VeIf1M0M4
10 minute documentary on Hitler’s best propagandist