<P> Alcohol distillation was introduced by Pūr Sinɑʼ (Persian ابن سینا or ابو علی‌ سینا or پور سينا Pur - e Sina; (ˈpuːr ˈsiːnɑː) "son of Sina"; (full citation needed) August c. 980--June 1037), commonly known as Ibn Sīnā, or in Arabic writing Abū ʿAlī al - Ḥusayn ibn ʿAbd Allāh ibn Al - Hasan ibn Ali ibn Sīnā . It was initially used as a medicinal elixir and was a popular remedy for the Black Death during the 14th century . Drinks such as vodka, gin and brandy come into form . </P> <P> Magnets (12th century) </P> <P> Magnets were first referenced in the Roman d'Enéas, composed between 1155 and 1160 . </P> <P> Mirrors (1180) </P>

2 technological advances created in the middle ages that made farming easier