Milestones over 20 years of Google's history

Google, which announced Sundar Pichai as its new CEO post reorganizing under a new parent company called "Alphabet," is one of the biggest and best-known companies in Silicon Valley. Here are some highlights of the company from the past 20 years.

1995: Co-founders Larry Page (L) and Sergey Brin meet at Stanford University, where grad student Brin gives prospective student Page a tour.

1996: The pair Larry Page (L) and Sergey Brin begin working on a new search engine for the Internet, which evolves to become Google.

1998: Google incorporates and moves into Susan Wojcicki's garage in Menlo Park, California.

1999: Page (L) and Brin move their company to Mountain View, California, and hire the company's first in-house chef to prepare meals for workers.

2001: Eric Schmidt is named CEO, with Page and Brin as presidents of products and technology.

2004: A few months after introducing Gmail, Google holds its first public stock offering.

2006: Google acquires YouTube for $1.6 billion. Chad Hurley (L) and Steve Chen, co-founders of YouTube are seen after a news conference.

2011: Larry Page (2nd R) becomes CEO, Schmidt (R) becomes executive chairman.

2013: Google celebrates 15th anniversary. A Google-themed birthday cake is seen at the house where Google was founded on the company's 15th anniversary in Menlo Park, California.

2014: Google completes a controversial stock split that creates a new class of non-voting shares, cementing Page (L) and Brin's control as major voting stockholders.

2015: Page announces creation of new holding company, Alphabet, to include Google's core business and other entities.