“#womensmarch2018 Philly Philadelphia #MeToo” by Rob Kall / flickr CC BY

“Christ at the Pool of Bethesda” Artus Wolffort (Public Domain)

“1896_DNC_(2)” (Public Domain)

“Fleet Super Illam 1892” by Enrique Simonet (Public Domain)

Other items from Adobe Stock. Assets from some clips credited in descriptions for the original videos.