Philadelphia Timeline, 1845
- April 12. By act of Assembly, the city of Philadelphia and the incorporated districts of Spring Garden, Northern Liberties and Penn, and the township of Moyamensing are required to establish and maintain police forces of "not less than one able-bodied man for one hundred and fifty taxable inhabitants" for the prevention of riots and the preservation of the public peace.
- July 4. Cornerstone of St. Anne's R.C. Church laid at Memphis Street and Leigh Avenue.
- December 29. St. Peter's R.C. Church dedicated.
Excerpted from "Happenings in ye Olde Philadelphia 1680-1900" by Rudolph J. Walther, 1925, Walther Printing House, Philadelphia, PA