Birthdays
John Decatur Barry
Turns 19 on this date
William Lewis Dewart
Turns 37 on this date
Henry Moses Judah
Turns 37 on this date
Horatio King
Turns 47 on this date
Robert Briggs Latham
Turns 40 on this date
Joseph Benson Perrie
Turns 27 on this date
James Lester Shipley
Turns 20 on this date
Events
| Science/Technology | First day of Summer | 06/21/1858 |
| Campaigns/Elections | Lincoln-Douglas campaign lasts from mid-June 1858 until January 1859 |
06/16/1858 to 01/05/1859 |
| Crime/Disasters | Massive fire on the London Docks | 06/21/1858 |
Documents
| Newspaper | New York Times, "Illinois Republican State Convention," June 21, 1858 | 06/21/1858 |