Roswell B. Mason, American lawyer and politician, 25th Mayor of Chicago (b. 1805)
Roswell B. Mason (September 19, 1805 – January 1, 1892) served as mayor of Chicago, Illinois (1869–1871) for the Citizens Party.

1892Jan, 1
Roswell B. Mason
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Events on 1892
- 28May
Sierra Club
In San Francisco, John Muir organizes the Sierra Club. - 7Jun
Plessy v. Ferguson
Homer Plessy is arrested for refusing to leave his seat in the "whites-only" car of a train; he lost the resulting court case, Plessy v. Ferguson. - 6Jul
Homestead Strike
Three thousand eight hundred striking steelworkers engage in a day-long battle with Pinkerton agents during the Homestead Strike, leaving ten dead and dozens wounded. - 7Jul
Philippine Revolution
The Katipunan is established, the discovery of which by Spanish authorities initiated the Philippine Revolution. - 9Aug
Telegraphy
Thomas Edison receives a patent for a two-way telegraph.