A: Nanuet, New York, United States
In December 2011 immigration lawyer and Talmudic scholar Daniel Retter compiled the first widely accepted index of the more than 1.8 million word Talmud roughly 1500 years after the Talmud was compiled. Compilation of the index took Retter seven years. Under the title of HaMaTeach, Retter's work was published by Feldheim Publishers, Nanuet, New York, in both Hebrew and English editions. The two volume index has 6,600 topical entries and 27,000 subtopical entries that point students to the treatises and pages of text they are seeking.
The New York Times report on Retter's project does not mention computing, suggesting that Retter may have compiled this index may have compiled this index in a traditional, non-digital manner.