This tag is a snapshot of the AST1420 repository as used in the 2020 version of the AST1420 graduate class at the University of Toronto.

This tag is a snapshot of the AST1420 repository as used in the 2018 version of the AST1420 graduate class at the University of Toronto.

This tag is a snapshot of the AST1420 repository as used in the 2017 version of the AST1420 graduate class at the University of Toronto.