Short answers, pulled from the story.
The Doolittle Raid occurred on the 18th of April 1942. Sixteen B-25 Mitchell bombers launched from the aircraft carrier Hornet to strike Tokyo, Yokohama, and other cities. This operation marked the first time American aircraft bombed the Japanese home islands.
The largest firebombing raid on Tokyo took place on the night of the 9th and the 10th of March 1945. Operation Meetinghouse involved 346 B-29 bombers dropping 1,665 tons of incendiary bombs. This attack killed an estimated 83,793 people and destroyed 16 square miles of the city.
The United States Air Force adopted the Empire Plan in mid-1945 to target 25 smaller cities. This strategy combined precision bombing of industrial facilities with incendiary attacks on urban areas. The plan involved attacking multiple cities on the same night to cripple Japan's war economy.
The atomic bombing of Hiroshima occurred on the 6th of August 1945. The atomic bombing of Nagasaki followed three days later on the 9th of August 1945. These attacks led to the country's surrender on the 15th of August 1945.
The total number of Japanese casualties from all air raids is estimated to be between 241,000 and 900,000 killed. Hundreds of thousands more people were wounded during the campaign. These figures include deaths from firebombing campaigns and atomic attacks.