Abraham Lincoln is assassinated by John Wilkes Booth.
1865 · The Assassination of a President
"While attending the play ""Our American Cousin"" in Ford's Theatre, actor John Wilkes Booth climbed up the stairs to the suite that President Abraham Lincoln and his wife resided. Once inside the suite Booth pulled out his pistol and shot The President in the head. In critical condition The President was carried out of the theatre for urgent medical attention. Unfortunately, Lincoln died the following day. Abraham Lincoln was the first American president to be assassinated, and his death caused a period of national mourning both in the North and South."
In 1871, a cow kicked over a lantern, causing a fire that burned down half of Chicago. Today this city is the third largest in the US.
1 English: from the medieval personal name Den(n)is (Latin Dionysius, Greek Dionysios ‘(follower) of Dionysos’, an eastern god introduced to the classical pantheon at a relatively late date and bearing a name of probably Semitic origin). The name was borne by various early saints, including St Denis, the martyred 3rd-century bishop of Paris who became the patron of France; the popularity of the name in England from the 12th century onwards seems to have been largely due to French influence. The feminine form Dionysia (in the vernacular likewise Den(n)is) is also found, and some examples of the surname may represent a metronymic form.2 English: variant of Dench.3 Irish (mainly Dublin and Cork): of the same origin as 1 and 2, sometimes an alternative form to Donohue but more often to MacDonough , since the personal name Donnchadh was Anglicized as Donough or Denis.