Data on the natural abnormal phenomena in Transcaucasia, containing in the Armenian sources of Mongolian gains period and Golden Horde formation

This article contains the historical certificates of various sources on the unusual natural phenomena observed in the western area of Eurasia and in adjacent territories, during campaigns of the Mongolian armies to the Near East, to Central Asia, Trancaucasia, the East Europe in the first half and the middle of XIII century. Collected materials represent significant interest for creation of a summary database on history of unusual natural phenomena and carrying out of the comparative analysis with data about the natural abnormal phenomena and the events happened during Middle Ages in the Central and East Asia. The analysed data have great value for reconstruction of natural anomalies history and accidents in Eurasia.