めっちゃいい とても使いやすい。O On March 27th , 1912 , Yukio Ozaki , the mayor of Tokyo , ge gift of friendship to the American city of Washington , D . C : more than 3000 Japanese cherry trees . Now , an event called the National Cherry Blossom Festival is held every spring in Washington , D . C . to celebrate the lasting friendship be petween the two countries The first National Cherry Blossom Festival was held in 1935 . In 10 2012 , on the 100th annversary of the gift , there was a centennial celebration in the form of a special five-week festival . Every year the festival begins in late March , around the time when the cherry blossoms are most likely to bloom , and lasts for several weeks Thousands of blooming cherry trees can be seen around the * / Basin in West Potomac Park , in East Potomac Park , and on the grounds of the Washington Monument O Some notable annual events include the opening ceremony , the 11 Southwest Waterfront fireworks displa lay , and the National Cherry Blossom Festival Parade . Other events include cultural activities such as art exhibits , music and dance performances , fashion shows , and marching bands . Reportedly , more than a million people visit Washington each year to view the blossoms C After the initial planting of the cherry trees in 1912 , Japan and the United States continued to give each other gifts as signs of goodwill In 1915 , the United States gave a gift of flowering dog wood trees to the people of Japan . In 1954 , in order to commemorate the signing of the 1854 " Japan-US . Treaty of Amity and Friendship , a 300-year - old stone lantern was given to the city of Washington by the Japanese ambassador , Sadao lguchi . The lantern is ceremonially lit once a year during the festival