1. Juneteenth Celebrations in New York: June 19, 1865, marks the original celebration of Juneteenth, commemorating the end of slavery in the United States. In New York, Juneteenth celebrations date back to at least the 1930s, with parades and other events taking place in Harlem and Brooklyn.

2. New York's First Subway: On June 19, 1904, the first subway line in New York City opened, running from City Hall to Harlem. The line, which initially had only 28 stations, fueled the growth of the city and revolutionized transportation in the United States.

3. Gay Pride March: The first Gay Pride March in New York City was held on June 28, 1970, but it was inspired by the Stonewall riots that occurred on June 28, 1969. On June 19, 2016, the annual Gay Pride March in New York City passed by the Stonewall Inn, in honor of the 1969 riots and their role in the gay rights movement.

4. Marilyn Monroe's Birthday: On June 19, 1926, Marilyn Monroe was born in Los Angeles, California. Although she did not live in New York, Monroe had strong ties to the city and is widely considered to be one of its most iconic cultural figures.

5. Brooklyn Bridge Completion: On June 19, 1885, the Brooklyn Bridge was completed after 14 years of construction. The bridge, which spans the East River and connects Brooklyn and Manhattan, is one of New York's most recognizable landmarks and a testament to the city's engineering prowess.