On June 7, 1982, Jan Karski planted his tree on the Avenue of the Righteous among the Nations on the Mount of Remembrance in Jerusalem. In subsequent years, many significant honors were bestowed on him: the Anti-Defamation League Courage to Care Award (1988, which in 2012 was renamed the Jan Karski Courage to Care Award); Pius XI Award (1990); the Eisenhower Liberation Medal (1991); the Wallenberg Medal (1991); and the Presidential Medal of Freedom (2012) conferred by President Barack Obama.