Japan attacked Pearl Harbor because the U.S. enacted an embargo on all oil supplies to Japan. There are events that take place at the Utah and Oklahoma memorials on Ford Island. The attack on Pearl Harbor on December 7, 1941, was important because it sparked the United States' entrance into World War II. Other leading and trailing events may also be included for perspective. Pearl Harbor bombed At 7:55 a.m. Hawaii time, a Japanese dive bomber bearing the red symbol of the Rising Sun of Japan on its wings appears out of the clouds above the island of Oahu. National Park Service Pearl Harbor National Memorial 1845 Wasp Blvd. 176 Honolulu, HI 96818 Bldg. The day after the Japanese attacked Honolulu's Pearl Harbor, the United States declared war on Japan. The U.S. embargo cut … Entries are listed below by date-of-occurrence ascending (first-to-last). Attack on Pearl Harbor Learn about this historic event that caused the United States to enter World War II. When the events at Pearl Harbor took place, World War II had already been going on for two years. Sunday, December 7, 1941, was supposed to be a day of rest for the military soldiers at Hawaii’s Pearl Harbor naval base on the island of Oahu. Although only chance saved the American aircraft carriers, their survival was a … The reason for the embargo is because Japan was invading China. The attack on Pearl Harbor bought Japan the space and time it needed. As he said “I felt obligated to create and archive the Pearl Harbor attack” when he organized an exchange event to promote world peace. At the time, the United States was not directly involved in WWII. The project has been created by Hidenori Watanave, a professor of computer science and design at the Metropolitan University in Tokyo, who decided to commemorate the victims of Pearl Harbor by creating an online, map-based archive – 1941.mapping.jp. Pearl Harbor is most known for the Japanese attack there on December 7, 1941. There are a total of (17) Attack on Pearl Harbor - WW2 Timeline (December 7th, 1941) events in the Second World War timeline database.