This Day in History: 0000-11-10

10 Nov – Ottomans under Murad II defeat Papal forces under Wladyslav III of Poland trying to relieve Turkish pressure on Constantinople in the Battle of Varna on the Black Sea coast (1444).
10 Nov – Dr. Rudolph Matas of Louisiana anesthetized a patient for surgery in the spinal, subarachnoid space, thus pioneering spinal anesthesia (1899).