The University takes down old Directories of Classes quickly, which is often inconvenient. The links below reproduce copies of Mathematics Department Directories of Classes dating back to Fall 2000. No guarantee of accuracy is made; use at your own risk.

Fall 2000
Spring 2001

Fall 2001
Spring 2002

Fall 2002
Spring 2003

Fall 2003
Spring 2004

Fall 2004
Spring 2005

Fall 2005
Spring 2006

Fall 2006
Spring 2007

Fall 2007
Spring 2008

Fall 2008
Spring 2009

Fall 2009
Spring 2010

Fall 2010
Spring 2011

Fall 2011
Spring 2012

Fall 2012
Spring 2013

Fall 2013
Spring 2014

Fall 2014
Spring 2015

Fall 2015
Spring 2016

Fall 2016
Spring 2017

Fall 2017
Spring 2018

Fall 2018
Spring 2019

Fall 2019
Spring 2020

Fall 2020
Spring 2021

Fall 2021
Spring 2022

The onward links from these pages do not work. Try searching at http://archive.org/web/ for http://www.columbia.edu/cu/bulletin/uwb/subj/MATH/_Fall2003.html (substituting the semester of interest). Very often working links can be had.