20th century

  • U.S. population exceeds 75

  • William Mckinley assasinated

  • Theodore Roosevelt becomes president

  • Big Stick Diplomacy

  • Department of commerce and Labor created

  • Ford Motor Company formed

  • The Wright brothers make their first powered flight in the Wright Flyer

  • Panama Canal Zone acquired

  • Susan B. Anthony dies

  • Coal mine explodes in Monongah, West Virginia, killing at least 361.

  • Oklahoma becomes a state

  • Ford Model T appears on market

  • The U.S. penny is changed to the Abraham Lincoln design

  • NAACP founded by W. E. B. Du Bois

  • William Howard Taft becomes President