In the mid—1560s King CharlesIX changed it from March 25 to January 1.
中期1560年代国王查理九世改变了新年的时间，变成从三月二十五日至1月1号。
2
1560 - Francis II of France dies and is succeeded by CharlesIX of France.
1560年的今天，法兰西弗朗西斯二世去世，法兰西的查尔斯九世继位。
3
When New Year's Day as changed from March 25 to January 1st in the mid-1560's by King CharlesIX, there were some people who still celebrated it on April 1st and those people were called April Fools.