Time taken to reach a $1 trillion valuation:

1. Bitcoin: 12 years
Launched in 2009, reached $1 trillion in February 2021.

2. Facebook (Meta): 17 years
Founded in 2004, reached $1 trillion in June 2021.

3. Tesla: 18 years
Founded in 2003, reached $1 trillion in October 2021.

4. Google (Alphabet): 22 years
Founded in 1998, reached $1 trillion in January 2020.

5. Amazon: 24 years
Founded in 1994, reached $1 trillion in September 2018.