They flew a bomber to Hiroshima, Japan and dropped a atomic bomb which took out several cities.
The 1979 revolution was a popular revolution against an autocratic but progressive monarch which turned into a backwards religious movement sending Iran back 200 years in time.
The Arab spring was a popular revolution sparked by demands for democracy against horrible dictators, which ultimately backfired due to civil war following the coups in Yemen, Syria and Libya, unrest in Egypt due to political tensions and high unemployment in Tunisia.
Differences:
Iranian Revolution eventually grew into religious movement, Arab spring was a pro-democracy movement
Arab spring results in civil war, unrest and bad economic times, Iranian Revolution results in Invasion form Iraq and oppression by the government.
The Japanese Attacked Pearl Harbor. President Franklin Roosevelt called December 7, 1941, "a date which will live in infamy." On that day, Japanese planes attacked the United States Naval Base at Pearl Harbor, Hawaii Territory. The bombing killed more than 2,300 Americans.
It taxed the crud out of people, while instilling fear in them.
This made it wealthy and influential.