Claim: In the thirteenth century, Ioulis seems to have been still the only town on the island; its ruins were visited by Joseph Pitton de Tournefort (a French botanist) in 1700 and identified by P. O. Brønsted in 1826.
Evidence: Its ruins were visited by Joseph Pitton de Tournefort in 1700 and identified by P. O. Brønsted in 1826. In the thirteenth century it seems to have been still the only town on the island. Joseph Pitton de Tournefort (5 June 1656 – 28 December 1708) was a French botanist, notable as the first to make a clear definition of the concept of genus for plants.