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Heisei Akihito is a member of the Imperial House of Japan who reigned as the 125th emperor of Japan from 1989 until his abdication in 2019. The era of his rule was named the Heisei (平成) era, Heisei being an expression of achieving peace worldwide. Born in 1933, Akihito is the fifth child and first son of Emperor Shōwa and Empress Kōjun. During the Second World War, he moved out of Tokyo with his classmates and remained in Nikkō until 1945. In 1952, his Coming-of-Age ceremony and investiture as crown prince were held, and he began to undertake official duties in his capacity as crown prince. The next year, he made his first journey overseas and represented Japan at the coronation of Elizabeth II, queen of the United Kingdom and Commonwealth. He completed his university education in 1956. In April 1959, he married Michiko Shōda, a commoner; it was the first imperial wedding to be televised in Japan, drawing about 15 million viewers. The couple has three children: Naruhito, Fumihito, and Sayako. When his father died in January 1989, Akihito succeeded to the Chrysanthemum Throne and became emperor of Japan, with an enthronement ceremony in 1990. He made efforts to bring the imperial family closer to the Japanese people, and made official visits to all forty-seven prefectures of Japan and to many of the remote islands of Japan. He has a keen interest in natural life and conservation, as well as Japanese and world history. Akihito abdicated in 2019, citing his advanced age and declining health, and assumed the title Emperor Emeritus. He was succeeded by his eldest son, Naruhito, whose era is named Reiwa (令和). At age 90, Akihito is the longest-lived verifiable Japanese emperor in recorded history. During his reign, 17 prime ministers served in 25 terms, beginning with Noboru Takeshita and ending with Shinzo Abe.