Philadelphia Timeline, 1833
- February 22. Cornerstone of Washington Monument laid, in Washington Square.
- April 8. Cornerstone of St. Michael's R. C. Church laid at the southeast corner of Second and Jefferson Streets.
Excerpted from "Happenings in ye Olde Philadelphia 1680-1900" by Rudolph J. Walther, 1925, Walther Printing House, Philadelphia, PA