From the Columbia University website...
"Obama attended Columbia College from 1981 to 1983"
Source:
http://news.columbia.edu/home/1260
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Bill Ayers' education:
1987 - Ed.D, Columbia University, Curriculum & Instruction
1987 - M.Ed, Teachers College, Columbia University, Early Childhood Education
1984 [he completed degree in '84] - M.Ed, Bank Street College, Early Childhood Education
1968 - B.A., University of Michigan, American Studies
http://education.uic.edu/directory/faculty_info.cfm?netid=bayers
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Bank Street College
Where We Are and How to Get Here:
Bank Street College is located on the Upper West Side of Manhattan at 610 West 112th Street, between Broadway and Riverside Drive.
Bank Street College is located in a bustling family and university neighborhood four blocks from Columbia University
http://www.bankstreet.edu/aboutbsc/visiting.html
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Why Won’t Obama Talk About Columbia?
The years he won’t discuss may explain the Ayers tie he keeps lying about:
http://article.nationalreview.com/?q=NjY4YzdhMDBkZGQ3ZmU2MTUzYjdkMzc5ZjUzYmViZWM=
Bernadine Dohrn’s sister, Jennifer Dohrn was married to the lawyer for the Black Panthers and was a professor at Columbia at the same time that Obama was at Columbia.
thanks