6IV. THE COLONIAL ERA.
17XV. MATERIAL PROGRESS.
7V. THE DECLARATION OF INDEPENDENCE.
18XVI. PROGRESS IN LITERATURE.
8VI. SOCIETY IN 1776.
19XVII. PROGRESS IN THE ARTS.
9VII. THE REVOLUTION.
20XVIII. PROGRESS IN SCIENCE AND INVENTION.
10VIII. THE CONFEDERATION AND CONSTITUTION.
21XIX. POLITICAL CHANGES.
11IX. WASHINGTON'S PRESIDENCY.
22FOOTNOTES: