Birthdays
Henry Winslow Abbett
Turns 21 on this date
Montgomery Blair
Turns 47 on this date
John Wilkes Booth
Turns 22 on this date
Joseph Mallalieu
Turns 19 on this date
Alexander Brown Norris
Turns 49 on this date
James Louis Petigru
Turns 71 on this date
Pinckney Benton Stewart Pinchback
Turns 23 on this date
John Sherman
Turns 37 on this date
Events
| Campaigns/Elections | Illinois Republicans hold their state convention in Decatur and nominate Richard Yates for governor |
05/09/1860 to 05/10/1860 |
| Campaigns/Elections | Meeting in Baltimore, the Constitutional Union Party nominates John Bell for president | 05/10/1860 |
| Campaigns/Elections | Tenth National Women's Rights Convention held in New York City |
05/10/1860 to 05/11/1860 |
| Lawmaking/Litigating | The 36th U.S. Congress is in session in Washington, D.C. |
12/06/1859 to 06/24/1860 |
| Lawmaking/Litigating | The U.S. Senate passes its version of the Homestead Bill | 05/10/1860 |
| Personal | Theodore Parker, famous abolitionist and member of the "Secret Six," dies in Florence, Italy | 05/10/1860 |
Documents
| Newspaper | New York Times, “Disunion Plots,” May 10, 1860 | 05/10/1860 |
| Newspaper | Ripley (OH) Bee, “The Admission of Kansas,” May 10, 1860 | 05/10/1860 |