American Renaissance
The American Renaissance was a period of American architecture and the arts from 1876 to 1917, characterized by renewed national self-confidence and a feeling that the United States was the heir to Greek democracy, Roman law, and Renaissance humanism. The era spans the period between the Centennial Exposition (celebrating the 100th anniversary of the signing of the Declaration of Independence) and the United States' entry into World War I.
Age of Revolution
The Thirteen Colonies of British America famously became independent in the American Revolution of 1776. The movement was the first European colony to claim independence and followed the drafting of a constitution that included a number of original features within a federated representative democracy and a system of checks and balances. Those include but are not limited to an elected head of state, property rights, due process rights, and the rights of free speech, the press and religious practice. This was the birth of the United States of America.