Also anyone can use Tubi TV free and find sience and History documentaries. I saw one on World War 1 and another on The Wild West.
Here is the World War One documentary on Tubi I saw:
https://tubitv.com/series/4515/the_first_world_war_the_war_to_end_all_wars
Another on the Civil War:
https://tubitv.com/series/3201/civil_war_america_divided
One on the 60s Space Race:
https://tubitv.com/series/1514/moon_race_the_history_of_apollo
UFO documentary:
https://tubitv.com/movies/333094/ufo_chronicles_contact_with_aliens
some examples