History Trivia - Roman Empire - Year of the four emperors

December 21

 69 the end of the Year of the four emperors: Following Galba, Otho and Vitellius, Vespasian became the fourth Emperor of Rome within a year. 

882 Hincmar of Reims died. As archbishop of Reims, Hincmar was one of the most influential political and ecclesiastical figures of Carolingian Europe.  

1118 Thomas A. Becket was born. 

History Trivia - Domitian becomes Emperor of the Roman Empire

Sept 14

 81 Domitian became Emperor of the Roman Empire upon the death of his brother Titus. 

891 Pope Stephen V died. The pontificate of Stephen witnessed the disintegration of the Carolingian Empire. 

1523 Pope Adrian VI died. Adrian VI was the only Dutch pope, and the last non-Italian pope to be elected until Pope John Paul II in the twentieth century. 

History Trivia - Thomas Seymour executed

March 20

 43 BC, Ovid (Publius Ovidius Naso), the most versatile of the Roman poets, was born.

141: 6th recorded perihelion passage of Halley's Comet.

235 Maximinus Thrax was proclaimed emperor. He was the first foreigner to hold the Roman throne.

 687 Saint Cuthbert, a shepherd and hermit who achieved fame as a holy man, healer, and bishop, died.

851 Ebbo of Reims, Bishop in the Carolingian empire and evangelist to Denmark, died.

1345 Saturn/Jupiter/Mars-conjunction was thought to have been the caused the plague epidemic.

1413 King Henry IV of England died and was succeed by his son Henry V.

1549 Thomas Seymour was executed. Seymour had married Henry VIII's widow Katherine Parr and pursued the young princess Elizabeth without success. When his piratical activities were discovered he was arrested, tried, and executed.