Ivy League, a group of eight colleges and universities in the northeastern United States that are widely regarded for their high academic standards, selectivity in admissions, and social prestige. The schools—which include Harvard (established 1636), Yale (1701), Pennsylvania (1740), Princeton (1746), Columbia (1754), Brown (1764), Dartmouth (1769), and Cornell (1865)—are among the most prestigious institutions in the world.
The association with ivy likely derives from the popular 19th-century ceremony of "planting the ivy," an evergreen plant symbolic of enduring growth, on college and university campuses. The planting ceremony became known as Ivy Day. The notion of a "league" reportedly derived from sportswriter Stanley Woodward of the New York Herald Tribune, who in 1933 wrote about athletic competitions between the "ivy colleges." Popular discussion of an athletic "league" for these "ivy colleges" soon followed. Although athletic competition between the colleges dates back to football meetings in the 1870s, an official Ivy League conference was not formed until 1954, with league competition formally beginning in 1956-7. The Ivy League was dominant in the early years of football until 1913, as attested by the All-America teams, but it faded in the 1920s.
"Ivy Day" is also the time, typically in late March, when Ivy League schools announce their admission decisions.