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The first compasses in ancient Han dynasty China were made of lodestone, a naturally magnetized ore of iron. [ 2 ] [ 10 ] The wet compass reached Southern India in the 4th century AD. [ 11 ] [ 12 ] Later compasses were made of iron needles, magnetized by striking them with a lodestone, which appeared in China by 1088 during the Song dynasty ...
The word television comes from Ancient Greek τῆλε (tele) 'far' and Latin visio 'sight'. The first documented usage of the term dates back to 1900, when the Russian scientist Constantin Perskyi used it in a paper that he presented in French at the first International Congress of Electricity, which ran from 18 to 25 August 1900 during the International World Fair in Paris.