Nişanyan Yeradları (formerly Index Anatolicus) is a database of past and present place names in Turkey and neighboring countries. It has 53,896 current items from Turkey, 11,897 from other countries, and a total of 72,913 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.