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1913: Onboard Lavatory

A lot has changed in the realm of onboard toilets since the Ilya Muromets, designed by Igor Sikorsky in Russia, became the first plane to offer passengers onboard facilities.

Today's passengers not only don't have to cross their legs on long flights, in some cases they can take a shower and pamper themselves in first-class lavatories. At left, Andrew Parker, senior vice-present for Emirates Airlines, gives a tour from inside the shower in the first class bathroom and spa aboard an Emirates Airbus A380.

Photo: Robyn Beck | AFP | Getty Images