Estonian mythology is a complex of myths belonging to the Estonian folk heritage and literary mythology. Information about the pre-Christian and medieval Estonian mythology is scattered in historical chronicles, travellers' accounts and in ecclesiastical registers. Systematic recordings of Estonian folklore started in the 19th century. Pre-Christian Estonian deities may have included a god known as Jumal or Taevataat ("Old man of the sky") in Estonian, corresponding to Jumala in Finnish, and Jumo in Mari.