Birthdays
James McNair Baker
Turns 37 on this date
George Griffin George
Turns 36 on this date
Arminius Summerfield Hank
Turns 27 on this date
James Ross Irvine
Turns 45 on this date
John Marshall Jones
Turns 38 on this date
John Linn McKim
Turns 45 on this date
Omsby MacKnight Mitchel
Turns 53 on this date
Nicholas Bartlett Pearce
Turns 30 on this date
James Alexander Ventress Pue
Turns 17 on this date
Events
| Cultural | Admission charged to a Baseball Park for the first time | 07/20/1858 |
| Campaigns/Elections | Lincoln-Douglas campaign lasts from mid-June 1858 until January 1859 |
06/16/1858 to 01/05/1859 |
| Foreign | Napoleon III of France and Count Cavour of Piedmont meet in secret in southern France to plot war with Austria | 07/20/1858 |
Documents
| Letter | Abraham Smith to Abraham Lincoln, July 20, 1858 | 07/20/1858 |
| Newspaper | Milwaukie (WI) Sentinel, "Douglas in the South," July 20, 1858 | 07/20/1858 |
| Book | Recollection by Gustave Koerner, Lincoln-Douglas Debates |
07/10/1858 to 11/02/1858 |