The Japanese holiday known as Kenkoku Kinen-no-Hi, or National Foundation Day, commemorates the accession to the throne of Jimmu Tenno, the legendary first human emperor of Japan—believed to be a direct descendant of the gods—and founder of the imperial dynasty. In 1872, when the holiday was originally proclaimed, it was called Empire Day. It only came to be known as National Foundation Day when it was brought back in 1966 after having been abandoned for about two decades for what reason? Discuss