History of American football, American Football Database
File:Satterfield cartoon about the 1913 World Series.jpg - Wikimedia Commons
File:Bob Shawkey, Philadelphia Athletics pitcher (cropped).jpg - Wikipedia
File:Polo Grounds 1913 World Series.jpg - Wikipedia
Philadelphia Athletics Baseball Team, 1902 - Digital Commonwealth
Nursing Clio Keep On Marchin' – The Women's Marches of 1876, 1913, and 2017
Past and present of America's history of protests
Harta Generala Romania, 1900
File:Baker, Frank 1919 - DPLA - becb1e1ba8929ede8b400a5fc1746149.jpg - Wikimedia Commons
Elmer Yates remembers the day the Big Leaguers came to Dugdale Park in 1931