May 19

Friday 19, 1848:

Mexican-American War: Treaty of Guadalupe Hidalgo – Mexico ratifies the treaty thus ending the war and ceding California, Nevada, Utah and parts of five other modern-day U.S. states to the USA for USD $15 million.

Monday 19, 1828:

U.S. President John Quincy Adams signs the Tariff of 1828 into law, protecting wool manufacturers in the United States.

Tuesday 19, 1643:

Thirty Years' War: French forces under the duc d'Enghien decisively defeat Spanish forces at the Battle of Rocroi, marking the symbolic end of Spain as a dominant land power.

Sunday 19, 1568:

Queen Elizabeth I of England has Mary Queen of Scots arrested.

Sunday 19, 1535:

French explorer Jacques Cartier sets sail on his second voyage to North America with three ships, 110 men, and Chief Donnacona's two sons (whom Cartier kidnapped during his first voyage).