| Business/Industry |
|
Commercial telegraph service inaugurated in Washington, D.C. |
| Education/Culture |
|
The Masonic College of Missouri opens in Philadelphia, Missouri |
| Personal |
|
Minty Ross marries John Tubman and becomes Harriet Tubman |
| Personal |
|
William Still moves to Philadelphia in 1844 |
| Lawmaking/Litigating |
-
|
The 28th Congress is in session in Washington, DC, sitting from early December, 1843 till mid-June, 1844 |
| Lawmaking/Litigating |
|
The 28th Congress opens in Washington, DC |
| Personal |
|
Lyman Trumbull marries Julia Maria Jayne in Springfield, Illinois |
| Legal/Political |
-
|
John Wentworth serves in the United States House of Representatives |
| Lawmaking/Litigating |
|
In Washington DC, the 27th Congress of the United States finishes its term and adjourns |
| Personal |
|
Owen Lovejoy marries Eunice Storrs Denham in Princeton, Illinois |
| Science/Technology |
|
Spencer Fullerton Baird publishes his first scientific article |
| Legal/Political |
-
|
The third session of the 27th Congress is sitting in Washington, DC between early December, 1842 and early March, 1843 |
| Lawmaking/Litigating |
|
The third session of the 27th Congress opens in Washington, DC |
| Lawmaking/Litigating |
|
The 27th Congress ends its second session in Washington, DC |
| Legal/Political |
-
|
The second session of the 27th Congress is sitting in Washington, DC between early December, 1841 and late August, 1842 |
| Lawmaking/Litigating |
|
The second session of the 27th Congress opens in Washington, DC |
| Lawmaking/Litigating |
|
The 27th Congress ends its early first session in Washington, DC |
| Lawmaking/Litigating |
-
|
The 27th Congress is in session in Washington, DC, sitting from late May, 1841 till mid-September, 1841 |
| Lawmaking/Litigating |
|
The 27th Congress opens early, in special session, in Washington, DC |
| Commercial |
|
Horace Greeley establishes the New York Tribune |
| Legal/Political |
|
President William Henry Harrison calls a special early session of the 27th Congress in Washington, DC |
| Lawmaking/Litigating |
|
In Washington DC, the 26th Congress of the United States finishes its term and adjourns |
| Legal/Political |
|
Supreme Court finds in favor of The Schooner Amistad |
| Lawmaking/Litigating |
-
|
The second session of the 26th Congress is sitting in Washington, DC between early December, 1840 and early March, 1841 |
| Lawmaking/Litigating |
|
The second session of the 26th Congress opens in Washington, DC |
| Personal |
|
William Danenhower marries Elizabeth Uber |
| Personal |
|
James Miller McKim marries Sarah Allibone Speakman |
| Lawmaking/Litigating |
|
The 26th Congress ends its first session in Washington, DC |
| Lawmaking/Litigating |
-
|
The 26th Congress is in session in Washington, DC, sitting from early December, 1839 to mid-July, 1840 |
| Personal |
|
Mary Lincoln moves to Springfield, Illinois |
