Organized crime has long been associated with New York City, beginning with the Forty Thieves and the Roach Guards in the Five Points in the 1820s. The 20th century saw a rise in the Mafia, dominated by the Five Families, as well as in gangs, including <answer>the Black Spades</answer>. The Mafia presence has declined in the city in the 21st century.
What was a notable 20th century gang in New York?
the Black Spades