Claim: In 1860, twenty-six years before the Haymarket Riot, New York City's German population was 22,230.
Evidence: The Haymarket massacre (also known as the Haymarket affair, Haymarket riot, or Haymarket Square riot) was the aftermath of a bombing that took place at a labor demonstration on May 4, 1886, at Haymarket Square in Chicago. There were 22,230 ethnic Germans in Chicago, or 20% of the city's population, in 1860. The Haymarket Riot occurred in 1886.