African American nationalist leader Marcus Garvey dies.
While in exile in Mexico Leon Trotsky is killed by an assassin.
Selective Service Act.
Germany conquers the Netherlands, Belgium, France, Denmark, Norway, and Luxembourg.
Battle of Britain.
The first Social Security check issued.
Filipino Federated Agricultural Laborers Association receives American Federation of Labor (AFL) charter.
Franklin Roosevelt elected to unprecedented third term as president.
Japan signs a ten-year pact of economic and military cooperation with Germany and Italy.