Note that the Mathematical Atlas was supposed to have been moved to http://www.math-atlas.org/ http://www.math-atlas.org/ in 2016, but that has not happened yet

Note that the Mathematical Atlas was supposed to have been moved to http://www.math-atlas.org/ http://www.math-atlas.org/ in 2016, but that has not happened yet. Latest snapshot from the Wayback Machine is from April 2015: https://web-beta.archive.org/web/20150424120057/http://www.math.niu.edu:80/~rusin/known-math/ https://web-beta.archive.org/web/20150424120057/http://www.m...