Euler, Leonhard, a celebrated mathematician, born at Basel; professor in St. Petersburg successively of Physics and Mathematics; came to reside in Berlin in 1741 at the express invitation of Frederick the Great; returned to St. Petersburg in 1746, where he died; besides many works issued in his lifetime, he left 200 MSS., which were published after his death (1707‒1783).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Eulenspiegel * Eumenides