What the world's most popular websites looked like on the day they launched

Apple has come a long way since it presented Mac OS 8 in 1996.

Pierre Omidyar founded eBay in 1995 as a hobby in his spare time. It is now valued at more than $40 billion.

"The Facebook" was originally open to Harvard students only. Today, almost 1.5 billion people have a Facebook profile.

Flickr was only created in 2004, but by 2013 more than 3.5 million photos were uploaded every day.

Three quarters of all searches in the US are done via Google, which has abandoned its 1996 grey background for a clean, white look.

Founded in California by people who previously worked at Paypal and Yahoo, LinkedIn is now available in 20 different languages.

Twitter was founded in 2006 by Jack Dorsey and three others. Dorsey is still at the company as chairman.

Yahoo was originally just a list of URLs. It used to employ Google as a search engine before developing its own technology. In 2013, it surpassed Google for the first time in US traffic. But Google eventually took the lead back.

YouTube was also founded by three former PayPal employees in California. It was bought by Google in 2006 for £1.07 billion.

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