Obama was born in Honolulu, Hawaii. After graduating from Columbia University in 1983, he worked as a community organizer in Chicago. In 1988, he enrolled in Harvard Law School, where he was the first black person to head the Harvard Law Review. Obama was also a member of the 'choom gang,' a self-named group of friends who spent time together and occasionally smoked marijuana.After graduating from high school in 1979, Obama moved to Los Angeles to attend Occidental College on a full scholarship. In February 1981, Obama made his first public speech, calling for Occidental to participate in the disinvestment from South Africa in response to that nation's policy of apartheid. In mid-1981, Obama traveled to Indonesia to visit his mother and half-sister Maya, and visited the families of college friends in Pakistan and India for three weeks.