[noncount] : a quality that makes you continue trying to do or achieve something that is difficult. 1  What he lacked in talent he made up for in determination. 2  dogged/fierce/steely/stubborn determination.
The first modern solution of general relativity that would characterize a black hole was found by Karl Schwarzschild in 1916, although its interpretation as a region of space from which nothing can escape was first published by David Finkelstein in 1958.
The Black Hole of Calcutta, 20 June 1756. The Black Hole of Calcutta was a small dungeon in Fort William in Calcutta, India where troops of Siraj ud-Daulah, the Nawab of Bengal, held British prisoners of war after the Bengali army captured the fort on 20 June 1756.