High Quality Content by WIKIPEDIA articles! The existence of similarities among the deities and religious practices of the Indo-European peoples allows glimpses of a common Proto-Indo-European religion and mythology. Reconstruction is based on the comparative method. Archaeological evidence is difficult to match to any specific culture in the period of early Indo-European culture in the Chalcolithic. Linguists are able to reconstruct the names of some deities in the Proto-Indo-European language from many types of sources. Some of the proposed deities are more readily accepted among scholars than others.