Birthdays
Elizabeth Blair Lee
Turns 41 on this date
John Tyler Morgan
Turns 35 on this date
Joseph Benson Parker
Turns 18 on this date
Jesse Lee Reno
Turns 36 on this date
Events
| US/the World | Emperor Franz Joseph I of Austria takes personal command of his armies in Italy | 06/20/1859 |
| Foreign | In Italy, Papal troops regain control of the dissident city of Perugia | 06/20/1859 |
| Crime/Disasters | Weeks of dangerously high temperatures prevail in central California |
06/20/1859 to 07/01/1859 |