Engelbert Kaempfer
In 1636, German diplomat and traveler Adam Olearius described Baku's 30 oil fields, noting that there was a great quantity of brown oil. In 1647, famous Turkish traveler Evliya Chelebi visited Baku. In April 1660, Cossacks under Stepan Razin attacked the Baku coast and plundered the village of Mashtaga. In 1683, Baku was visited by the ambassador of the Kingdom of Sweden, Engelbert Kaempfer. In the following year, Baku was temporarily recaptured by the Ottoman Empire.