Japan’s Emperor Akihito is the first Japanese monarch to abdicate in more than 200 years. Reigning for three decades, the 85-year-old emperor has taken a liberal stance and vowed to reconcile relations with the countries Japan invaded in the second world war. Besides his duties as an emperor, he is also a fish science researcher who had his articles published in journals including Science and Nature. The new Reiwa era will begin with the accession of Crown Prince Naruhito to the throne on May…