Date of the japanese attack on the u. s. pearl harbor base

7 December 1941

Explanation:

On 7 December 1941, Japanese forces attacked the American naval base at Pearl Harbor to check their interference in Southeast Asia. This event changed the course of world war second as the United States of America entered the war from the allied sides. Now the war efforts of the allied countries became strong and the entry of the United States was seen vital for their victory.

that would be the steamboat because none of the other things are forms of transportation