On August22,1860, German engineer Paul Gottlieb Nipkow was born, who invented a predecessor of today's television http://yovisto.blogspot.de/2014/08/paul-nipkow-and-picture-scanning.html
On May 4, 1493, Pope Alexander VI issued the papal bull 'Inter caetera' (Among other [works]), which granted to Spain all lands to the "west and south" of a pole-to-pole line 100 leagues west and south of any of the islands of the Azores or the Cape Verde islands.
On October 20, 1401, Klaus Störtebeker, representative of a companionship of privateers known as the Victual Brothers, was executed by order of the senate of Hamburg. His life has become legend and he often is compared to other historic freedom fighters such as Che Guevara or Robin Hood, because he fought the rich in the name of the poor.
On October 18, 1989, the unmanned NASA spacecraft Galileo was launched on her mission to study the planet Jupiter and its moons. Named after the astronomer Galileo Galilei, it consisted of an orbiter and entry probe, which descended into Jupiter's atmosphere.
On October 17, 1835, Dutch explorer of Africa Alexandrine Petronella Francina Tinne was born. She was the first European woman to attempt to cross the Sahara.
J. Waitelonis, and H. Sack. Proceedings of the 4th IEEE International Conference on Semantic Computing (ICSC), September 22-24, 2010, Carnegie Mellon University, Pittsburgh, PA, USA, page 446--447. IEEE Computer Society, (2010)