New York City's early subway system developed out of necessity to address heavy street-level congestion in the late 19th century. The first underground railway opened in 1870, though it was small and short-lived. Over subsequent decades, three separate transit lines - the BMT, IRT, and IND - were established to serve different parts of the city. Construction of the extensive underground network was difficult and dangerous work performed largely by immigrant laborers known as "sandhogs." The system has since evolved, transitioning from metal token coins to the Metrocard system in the early 2000s.

1. New York City’s Subways Created and Presented by Elsie Sánchez Lenny Weintraub

11. Construction of the Subway

16. "Small Y" Token 1953-1966: 15 cents 1966-1970: 20 cents

17. "Large Y" Token 1970-1972: 30 cents 1972-1975: 35 cents 1975-1980: 50 cents

18. "Diamond Jubilee" Token 1979-1980: 50 cents

19. "Solid Brass NYC" Token 1980-1981: 60 cents 1981-12/31/1983: 75 cents 1/1/1984-12/31/1985: 90 cents

20. "Bullseye" Token 1/1/1986-1990: $1.00 1990-1992: $1.15 1992-11/12/1995: $1.25

21. "Five Boroughs" Pentagram Token 11/13/1995-4/13/2003: $1.50

27. Task: Find the route from one designated destination to the designated final destination.