In the beginning of October 1883, tsar Alexander III with his wife and two sons, accompanied by a huge retinue, arrived to Baku from Tiflis. The railway station had been prepared for the solemn ceremony. The city authorized Haji Zeynalabdin Taghiyev to welcome Alexander. The visitors examined the oil storage of Nobel brothers, the pump station, and three powerful oil wells of Shamsi Asadullayev. Beginning from the 1890s, Baku provided 95% of the oil production in the Russian Empire and approximately half of world oil production. Within ten years, the city had become the foremost producer of oil overtaking the United States.