Wikipedia:Selected anniversaries/March 28

March 28: Teachers' Day in the Czech Republic

• 193 - Praetorian Guards assassinated Roman Emperor Pertinax and sold the throne in an auction to Didius Julianus.
• 845 - Viking raiders, probably under Ragnar Lodbrok, captured Paris and held the city for a huge ransom.
• 1795 - Partitions of Poland: The Duchy of Courland, a northern fief of the Polish-Lithuanian Commonwealth, ceased to exist and became part of Imperial Russia.
• 1862 - American Civil War: An invasion of New Mexico Territory by the Confederate States Army was halted in the Battle of Glorieta Pass.
• 1979 - A nuclear reactor at Three Mile Island (pictured) near Harrisburg, Pennsylvania suffered a loss of coolant and a partial meltdown.

Recent days: March 27 – March 26 – March 25

More anniversaries:

• February 29
• March 1
• March 2