What were you doing on May 15, 1997? Chances are you weren't watching the IPO of a new tech company. In fact, there's a good chance you hadn't ever heard of it. On that day, a three-year-old e-commerce firm called Amazon.com (AMZN) went public with an IPO price of $18 a share on the Nasdaq under the ticker code AMZN and, as they say, the rest is history.

Amazon began as an online bookstore but has grown to be the largest Internet-based retailer in the world by total sales and market cap, with products and services such as Amazon Prime, Amazon Fresh, the Kindle, the Fire, and Echo. Today, its share price hit an all-time high of $858 a share on the back of multiple firms upping its price target above $1000 a share. (See also: Amazon Acquires Souq.com)

It's been a meteoric rise for Amazon and its founder Jeff Bezos, who founded the company in Seattle in 1994.Today, Bezos is listed as the third richest person in the world with a net worth of $72.8 billion, according to Forbes. In 2013 Bezos purchased the Washington Post for $250 million.

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