- June 15
- 1888 – The first train to Casper, Wyoming, operating on the Chicago and North Western Railway, arrives.
- 1805 – William Butler Ogden (pictured), president of the Chicago and North Western Railway and first president of Union Pacific Railroad, is born (d. 1877).
- 1902 – New York Central Railroad debuts the 20th Century Limited passenger train between Chicago, and New York City.
- 1976 – Amtrak introduces the Palmetto.
See also edit