What was the original name of the search engine "Google"?

The story behind the answer

BackRub is correct because Google began in 1996 as a Stanford research project by Larry Page and Sergey Brin that ranked websites by analyzing their “back links.” This approach powered PageRank, the algorithm that judged a page’s importance by how many other pages linked to it—hence the back-focused name “BackRub.”

They soon rebranded to “Google,” a play on “googol” (10^100), to signal their mission to organize an immense amount of information. Memory tip: BackRub → backlinks → PageRank. Also, Netscape Navigator was a web browser, not a search engine; “SearchPro” and “CatMassage” weren’t Google’s names.