sharp increase in the middle of the 1700th century
During the 1700th century, the number of windmills more than quadrupled. From 1699 to 1808, the number rose from 375 to 1677. The largest increase was from the middle of the 1700th century, during the same period that the grist mills gradually disappeared. In a royal letter from 1808 there were provisions aimed at discouraging the building of more mills on the island. From 1808 to 1822, the number of windmills only increased from 1677 to 1713. The information that there were 1677 windmills in 1822 comes from Öland's priest Abraham Ahlqvist's book Öland's Historia och Beskrivning. According to Ahlqvist, the mills were most densely packed in Vickleby parish, where there were 77 of them. Around the turn of the century in 1900, the number of windmills on Öland decreased drastically. Initially, most mills were demolished in the southern and central part of the island, where the modernization of agriculture went fastest. The small stump mills were replaced by new technologically superior mills – first the large Dutch mills, then steam mills and mills powered by crude oil. Eventually, there were also electrically powered mills and mills that could be connected to the farm's tractor. Öland's Mills Association, formed in 2008, carried out an inventory recently, where it was concluded that today there are 351 mills left on the island.