Nişanyan Yeradları (formerly Index Anatolicus) is a database of past and present place names in Turkey and neighboring countries. It has 54,172 current items from Turkey, 12,076 from other countries, and a total of 73,635 historic names.
The most comprehensive inventory of Armenian localities in Turkey at the beginning of the 20th century. 3,000 towns and villages, 300,000 words of commentary, original texts in Armenian and in translation.