As Facebook's Chief Operating Officer, Sheryl Sandberg has made quite a name for herself. 

Starting her education at Harvard University, Sheryl has had a successful tech career for more than a decade.

Since 2008, she's been able to help grow Facebook's user count to 2.38 billion, one of the largest social media platforms in the world. 

Beyond Sheryl's unicorn business ideas, she has been praised for her dedication to workplace advocacy for women and entrepreneurial spirit.

Here, discover 10 fascinating Sheryl Sandberg facts you haven't heard. 

1. Sheryl helped build Facebook's empire

After taking on the role as Facebook's Chief Operating Officer over ten years ago, Sheryl has helped drive Facebook to success. 

Her experience working at Google made her a top candidate for the position of Chief Operating Officer, as Facebook founder, Mark Zuckerberg, needed someone who could help oversee daily tasks and execute company goals. 

Since taking on the role, Sheryl has been able increase Facebook's value, moving the company away from a $56 million loss and, instead, towards $21 billion in market capitalization profits last year alone. 

In 2012, she also became the first woman to be elected onto the company's Board of Directors. 

2. She is one of the most powerful women in America.

Sheryl's name has frequently popped up on Forbes's lists of most successful figures. 

This year, she ranked No. 12 as one of America's richest self-made women. 

Last year, she was also highlighted as one of the world's most powerful women. 

She was joined on the lists by other notable figures, such as Oprah Winfrey, Angela Merkel, Melinda Gates  and Meg Whitman.  

3. Sheryl wrote a book to address workplace inequalities.

Since starting her career in technology, Sheryl has paved the way for other females to join the male-dominated field. 

In 2013, she published the best-selling book "Lean In: Women, Work, and the Will to Lead."

In a move to encourage other females to go after their dreams (both in their career and personal life), Sheryl shares tips, techniques, facts and stories about her experiences. 

"In the future, there will be no female leaders. There will just be leaders," writes Sheryl.  

Her book has reached international success, selling over 2 million copies. 

4. Prioritization has been a key to her success.

In an interview with CNN, Sheryl shared her secret to success: prioritization. 

"I strongly believe in ruthless prioritization," said Sheryl.

"Sometimes people think of prioritization as only doing things that will have a positive impact on your business, but ruthless prioritization means only focusing on the very best ideas." 

"Ruthlessly prioritizing can get hard because you're always trying to do more, but it's one of the best and most important ways to stay focused."

5. Sheryl a diverse work resume.

Besides working at Facebook and Google, Sheryl has had a handful of other interesting jobs. 

In the '80s she used to be an aerobics instructor. 

"The silver leggings, the legwarmers, the head band...the whole thing," said Sheryl in an interview.

Almost twenty years later though, you would have found her in the White House, serving as chief of staff to U.S. Treasury Secretary, Larry Summers. 

6. She is big into giving back.

When Sheryl isn't busy at Facebook, she is paying it forward in the community. 

Currently, she sits as the Board Chair for the Sheryl Sandberg and Dave Goldberg Family Foundation. 

The organization strives to "build a more equal and resilient world." 

In 2017, the foundation established the Dave Goldberg Scholarship Program, named after Sheryl's late husband, to fund college education and allow students to focus on their goals, rather than loans. 

7. Sheryl met Mark Zuckerberg at a Christmas party.

When thinking of getting a job at Facebook, many may imagine an intense application process and cutthroat interviews.

For Sheryl though, she only had to attend a holiday party.  

She met Mark Zuckerberg in 2007 and their business partnership began soon after. 

"I met Mark, and I was just inspired," said Sheryl in a Masters of Scale podcast interview. 

"I saw (Facebook's) potential to make us who we were--putting yourself and your picture and your real friends and your real connection and your real birthday online--was such a big leap, but it was one that really resonated for me, because it enabled us to have personal connections."

8. Career paths are complicated, says Sheryl. 

Although Sheryl has a successful career, she told CNN that people shouldn't try to force their career down a direct path. 

"If you try to draw the line, you won't just probably get it wrong -- you'll also miss big opportunities," said Sheryl. 

Instead, she advises people to evaluate what they want out of life, looking at both their long and short-term goals. 

"Ask yourself how you can improve and what you're afraid to do -- that's usually the thing you should try."

9. Her mother was one of her greatest role models.

While Sheryl is considered a role model by many today, she had her own heroes. 

Her mother was one of them.

Sheryl has shared that her mom, Adele, was not only empathetic, but actively worked to better the community around her. 

"She raised her children, taught English as a second language, helped her parents spend their final years in dignity and comfort, and now runs Save Your Hearing, a non-profit to prevent noise-induced hearing loss in young people," said Sheryl. 

10. She has strong ties to Cambridge, Massachusetts.

While Sheryl currently lives in Menlo Park, California, she spent her college years in Massachusetts. 

In 1991, she received her bachelor's degree in economics from Harvard University, as well as her MBA in 1995.