When was the last time the yankees and the dodgers played in a world series?
In Brooklyn, the Dodgers won the NL pennant several times (1890, 1899, 1900, 1916, 1920, 1941, 1947, 1949, 1952, 1953, 1955, 1956) and the World Series in 1955. After moving to Los Angeles, the team won National League pennants in 1959, 1963, 1965, 1966, 1974, 1977, 1978, 1981, 1988, 2017, and 2018, with World Series championships in 1959, 1963, 1965, 1981 and 1988. In all, the Dodgers have appeared in 20 World Series: 9 in Brooklyn and 11 in Los Angeles.
As of 2017, when was the last time the yankees and Dodgers played in the world Series?
1981
Los Angeles Dodgers
Although the Yankees and the Dodgers have not met in the playoffs since the 1981 World Series, interleague matchups between the two teams, whether in New York or Los Angeles, have become quite popular. Tickets in both cities have become exclusive shortly after going on sale and games between the two teams have drawn sell out crowds, as evidenced during the doubleheader at the new Yankee Stadium in June 2013, the first time the Dodgers visited the Bronx since interleague play was introduced and the first time they visited the new Yankee Stadium.
As of 2016, when was the last time the yankees and Dodgers played in the world Series?
1981
Dodgers–Yankees rivalry
No context provided
As of 2015, when was the last time the yankees and Dodgers played in the world Series?
1981
Los Angeles Dodgers
https://en.wikipedia.org/wiki/Los%20Angeles%20Dodgers
Dodgers–Yankees rivalry
https://en.wikipedia.org/wiki/Dodgers%E2%80%93Yankees%20rivalry
The 1981 World Series was the championship series of Major League Baseball's (MLB) 1981 season. The 78th edition of the World Series, it was a best-of-seven playoff played between the American League (AL) champion New York Yankees and the National League (NL) champion Los Angeles Dodgers. It marked their third Series meeting in five years and was their 11th overall Series meeting. 
1981 World Series
The Dodgers won the Series in six games, as the Yankees had done in the teams' prior two Series meetings, in 1977 and 1978. This was the Dodgers' first title since 1965, their first victory over the Yankees since 1963, and third overall Series win over the Yankees.
1981 World Series
The 1981 World Series was the 78th edition of the World Series; a best-of-seven playoff played between the American League champion New York Yankees and the National League champion Los Angeles Dodgers. It marked their third Series meeting in five years and the last time the teams faced each other in a World Series. The Dodgers won the Series in six games, achieving their first title since 1965, their first victory over the Yankees since 1963, and third overall Series win over the Yankees.