Answer:
George Washington elected president of the United States: 1789
Founding of Washington D.C. as the capital of the United States: 1790
Louisiana Purchase made by US president Thomas Jefferson: 1803
War of 1812: 1812
Missouri compromise: 1820
Monroe doctrine begins under President James Monroe: 1823
Mexican war between the United States and Mexico: 1846
Compromise of 1850: 1850
Dred Scott .vs. Sandford ruling issued by the Us Supreme Court: 1857
Abraham Lincoln elected president of the United States: 1860
The US Civil War begins: 1861
13th Amendment ratified: 1865
Impeachment trial of President Andrew Johnson: 1868
14th Amendment ratified: 1868
15th Amendment ratified: 1870
Hope this helps, and please mark me brainliest if it does!
