<span>The crusaders attacked and conquered Constantinople , Temporarily establishing a Western kingdom there.</span>
Jun 20, 1675 -<span> Apr 12, 1678 I believe </span>
Key events:
1918: world war I ends.
1920: nineteenth amendement ratified.
1928: Herbert Hoover elected president.
1929: Stock Market Crash.
1930: Hawley Smoot Tariff passed.
1932: Franklin Roosevelt elected president.
1933: New Deal begins.
Hope this helps.