| 1820 |

|
The United States government declares
that any American involved in the importation of Africans for enslavement
will receive the death penalty. |
|
|
Henry Schoolcraft begins his research into the history
and culture of Native Americans in the Lake Superior region. |
| 1821 |

|
The American colony of Liberia is
established on the west coast of Africa, and is settled by 130 African
Americans. |
| 1822 |
|
Denmark Vesey, a free African American living in
Charleston, South Carolina, plans a rebellion against enslavement, but is
discovered. |
| 1823 |
|
The United States adopts a policy, known
as the Monroe Doctrine, discouraging further colonization of either North
or South America by European countries. |
| 1824 |
|
Congress authorizes the Army Corps of Engineers to
survey potential road and canal routes for the growing American
nation. |
|

|
American Revolutionary War hero, the
Marquis de Lafayette, is welcomed with enthusiasm during a return visit to
the United States from his native France. |
|
|
In Troy, New York, educator Emma Willard opens the first
women's school with college-level courses. |
| 1825 |

|
The 350 mile long Erie Canal, the most
important passenger and freight route from the East to the Midwest, is
completed. |
| 1826 |

|
Painters like Thomas Cole capture the natural beauty of
the Hudson River Valley on canvas, founding a distinctly American style of
landscape painting. |
| 1827 |
|
John Russwurm and Samuel Cornish of New
York City publish the first African-American newspaper, Freedom's Journal.
|
|

|
Artist and ornithologist John James Audubon publishes
the first of his drawings of the hundreds of colorful birds of North
America. |
| 1828 |
|
Noah Webster completes his monumental
American Dictionary of the English Language, after working on it for 20
years. |
| 1829 |
|
The railroad age begins as the Baltimore & Ohio
Railroad carries its first passengers in a horse-drawn excursion
train. |