The Invasion of Poland marked the beginning of WWII. Nazi Germany started attacking on September 1st, then the Soviet Union invaded Poland on September 17th. On October 6th they successfully invaded Poland and they divided it up.
Attack on Pearl Harbor
December 7, 1941
The attack on Pearl Harbor was a surprise attack from Japan. They used airplanes to drop bombs on the United States naval base at Pearl Harbor in Honolulu. 2,403 people died, including 2,335 people from the military and 68 civilians.
Battle of Stalingrad
1942 - February 2, 1943
In the Battle of Stalingrad, Germany and its allies fought against the Soviet Union for control of the city of Stalingrad in Russia. This battle was significant because it was the first major German loss in WWII.
Battle of Midway
June 4, 1942 - June 7, 1942
The Battle of Midway was a U.S. navy surprise attack against the Japanese fleet. It became one the most important American naval victories in WWII.
June 6, 1944
D-Day was the Allied invasion in Operation Overlord during WWII. It also ended up being the largest seaborne invasion in history.
May 8, 1945
V-E Day marked Nazi Germany's surrender of its armed forces. V-E Day stands for Victory in Europe Day and was the end of WWII in Europe.
First Atomic Bomb
August 6, 1945
The first atomic bomb was dropped by an American B-29 bomber over the Japanese city of Hiroshima. The explosion wiped out 90 percent of the city and immediately killed 80,000 people.
August 15, 1945
V-J Day stands for Victory in Japan Day, and was celebrated on the day that Japan surrendered. This day marked the official end of WWII.