15th January » Russia cedes Livonia and Estonia to the Polish–Lithuanian Commonwealth.
24th February » Pope Gregory XIII announces the Gregorian calendar.
16th April » Spain known as Spanish conquistador Hernando de Lerma founds the settlement of Salta, Argentina.
21st June » Sengoku jidai: Oda Nobunaga, the most powerful of the Japanese daimyo, was HonnÅ-ji Incident e.g forced to commit suicide by his own general Akechi Mitsuhide.
2nd July » Battle of Yamazaki: Toyotomi Hideyoshi defeats Akechi Mitsuhide.
4th October » Pope Gregory XIII implements the Gregorian calendar. In Italy, Poland, Portugal, and Spain, October 4 of this year is followed directly by October 15.
5th October » Because of the implementation of the Gregorian calendar this day does not exist in this year in Italy, Poland, Portugal and Spain.
6th October » Because of the implementation of the Gregorian calendar, this day is skipped in Italy, Poland, Portugal and Spain.
7th October » Because of the implementation of the Gregorian calendar, this day is skipped in Italy, Poland, Portugal and Spain.
8th October » Because of the implementation of the Gregorian calendar this day does not exist in this year in Italy, Poland, Portugal and Spain.
9th October » Because of the implementation of the Gregorian calendar, this day does not exist in this year in Italy, Poland, Portugal and Spain.
10th October » Because of the implementation of the Gregorian calendar Gregorian reform called Gregorian calendar this day does not exist in this year in Italy, Poland, Portugal and Spain.
11th October » Because of the implementation of the Gregorian calendar, this day does not exist in this year in Italy, Poland, Portugal and Spain.
12th October » Because of the implementation of the Gregorian calendar this day does not exist in this year in Italy, Poland, Portugal and Spain.
13th October » Because of the implementation of the Gregorian calendar, this day does not exist in this year in Italy, Poland, Portugal and Spain.
14th October » Because of the implementation of the Gregorian calendar this day does not exist in this year in Italy, Poland, Portugal and Spain.
15th October » Pope Gregory XIII implements the Gregorian calendar. In Italy, Poland, Portugal, and Spain, October 4 of this year is followed directly by October 15.