Answer:
George Washington elected president of the United States
Founding of Washington D.C. as the capital of the United States
Louisiana Purchase made by US President Thomas Jefferson
Missouri Compromise
Monroe Doctrine begins under President James Monroe
Mexican War between the United States and Mexico
Compromise of 1850
War of 1812 Dred Scott v Sandford ruling issued by the US Supreme Court
Abraham Lincoln elected president of the United States
The US Civil War begins
13th Amendment ratified
Impeachment trial of President Andrew Johnson
14th Amendment ratified
15th Amendment ratified
Explanation:
Because the United States struggled to Unite and quell the rebellion, the answer is B. The United States realized it needed to be more centralized in order to deal with internal and external threats.
Voting patterns were determined by vague cultural inclinations
The idea was to have two house legislature that would choose a President and supreme court justices
