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TIL that words are encoded in our mind on the basis of their shapes and sizes instead of their actual meaning.

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1aARr TIL The world’s first mobile phone call was made on April 3, 1973, when Martin Cooper, a senior engineer at Motorola, called a rival telecommunications company and informed them he was speaking via a mobile phone.
BrJ9K TIL The Koh-i-Noor, one of the largest cut diamonds in the world and part of the British Crown Jewels, doesn't have a monetary value. Worn by Queens, the diamond is known as the "Mountain of Light." The history of the diamond and the dispute to the rightful owner make the diamond's value priceless
O5O7 TIL there are three power grids covering the United States. One for the west, one for the east, and one for Texas. Texas has its own in an attempt to maintain its freedom from federal regulation.
9717 TIL of experiments in a high violence neighborhood of Chicago resulted in a 67% drop in shootings…by treating violence like an infectious disease instead of passing legislation or increasing arrests. Similar strategies resulted in 45% drops in other neighborhoods.
a8E4A TIL that for thirteen years, Rio de Janeiro functioned as the capital of the United Kingdom of Portugal, making it the only European capital to ever exist outside of Europe.