Karl Ernst von Baer was a Baltic German explorer and scientist. A multi-talented personality, Baer was also a biologist, naturalist, geologist, geographer, and meteorologist. He is also regarded as the founding father of embryology. One of the founders of the Russian Geographical Society, Karl Ernst von Baer also served as the maiden president of the Russian Entomological Society.
Endel Tulving is an Estonian-born Canadian experimental psychologist and cognitive neuroscientist. He is best known for his pioneering research on human memory. He earned a Ph.D. from Harvard University and began his academic work at the University of Toronto, where he remained for the rest of his career. He is a recipient of the Canada Gairdner International Award.
Andrus Ansip is an Estonian politician best known for his service as the 16th Prime Minister of Estonia from 12 April 2005 to 26 March 2014. Prior to his premiership, Ansip served as the Mayor of Tartu from 1998 to 2004. He then served as the Minister of Economic Affairs and Communications from 2004 to 2005.
Heinrich Lenz was a Russian physicist best remembered for formulating Lenz's law in electrodynamics. Lenz started his career as a teacher and later became the Dean of Mathematics and Physics at the University of St. Petersburg. From 1863 until his demise in 1865, Heinrich Lenz served as a Rector at the institution.
Ludvig Puusepp was an Estonian researcher and surgeon. He was the first professor of neurosurgery in the world. Consequently, Puusepp traveled all over the world as he was often invited as a visiting professor from universities worldwide. Ludvig Puusepp also contributed as an author, publishing books on the surgery of the nervous system and brain tumors.