First

The earliest recorded spam was a dental advertisement sent by telegram in 1864 in Britain. The furious recipient wrote to The London Times: "By what right do they send me a telegram that is plainly, purely an advertisement, to disturb me?"

The world's first sunglasses were invented about 2,000 years ago by Arctic indigenous people. They carved animal bones or ivory to fit the face with thin slits, preventing snow blindness from UV rays reflected off the snow.