Twitter turns 10: Business leaders' first tweets

Monday marks 10 years since social media site Twitter was founded by Jack Dorsey and Noah Glass in San Francisco.

In honor of the anniversary, CNBC takes a look at what the business world's biggest movers and shakers were doing the year Twitter was founded, and revive their first tweets.

Decades of investment experience have helped the Chairman and CEO of Berkshire Hathaway gain the unofficial title as the "Oracle of Omaha." Back in 2006, though, Warren Buffett was making headlines for giving away a good chunk of his $44 billion to charities like the Bill and Melinda Gates Foundation.

The year that Twitter was born, the activist investor and chairman of Icahn Enterprises launched a campaign calling for the break-up of media giant Time Warner, but was only able to pressure them into a share buyback and cost-cutting program. He's since abandoned his stake and has denied rumors that he's building another.

Twitter's 10 year anniversary also marks a decade since Bill Gates announced he would step down from day-to-day operations at Microsoft to focus on work through the Bill and Melinda Gates Foundation. He would remain Microsoft's chairman.

Back in 2006, the famed inventor and PayPal co-founder was still getting his electric car company, Tesla, and commercial spacecraft business, SpaceX, off the ground. That year, SpaceX lost one of its Falcon 1 rockets minutes after take-off, but those setbacks clearly haven't held the company back which is still scheduling launches for new spacecraft.

Headlines around hedge fund billionaire George Soros were thin in 2006, but Soros Strategic Partners did dip its toes into the movie scene, buying up 59 films of the DreamWorks library including "Gladiator", "American Beauty" and "Saving Private Ryan."

In 2006, Christine Lagarde was five years out from taking her spot as the managing director of the International Monetary Fund, but was still making her mark in the French government as the minister of commerce and industry. She would still go on to serve as the minister of agriculture and later the head of the ministry of finance.

Winfrey has made her mark on the business world by becoming the face of Weight Watchers and taking a 10 percent stake in the weight loss and diet company. But a decade ago, she was still dealing with the controversy after endorsing "A Million Little Pieces, " the supposed true story of author James Frey's alleged addiction, which was later proven to be partly embellished, prompting apologies to readers.

Back in 2006 Marissa Mayer was working as Google's vice-president for search products and user experience, where she was building up the accolades that would later help her take the reins as the CEO of Yahoo in 2012.

Twitter and Square CEO Jack Dorsey holds a special place on Twitter's website, not only as its co-creator, but having sent the social media site's first ever Tweet. The company is now worth over $11 billion.

In 2006, Rupert Murdoch's News Corp was still riding a burgeoning social media wave, having recently bought out MySpace, which it would go on to sell two years later.