Here is a look at the life of Paul Allen, philanthropist and co-founder of Microsoft.
Birth date: January 21, 1953
Arts and entertainment
Charities and charitable giving
Diseases and disorders
Health and medical
Neurological disorders and injuries
Northwestern United States
Portland Trail Blazers
Continents and regions
Death date: October 15, 2018
Birth place: Seattle, Washington
Birth name: Paul Gardner Allen
Father: Kenneth Allen, librarian
Mother: Edna Faye (Gardner) Allen, teacher
Education: Attended Washington State University, 1972-1974
Allen donated more than $2 billion to charity.
Owned a 414-foot yacht named Octopus that cost $200 million to build and is equipped with amenities such as a recording studio, helipads and two submarines.
Also owned a 303-foot yacht named Tatoosh.
Allen was a musician, having received his first guitar at 16.
Had a minority stake in the Seattle Sounders FC soccer team.
Owner of two professional sports teams, NFL's Seattle Seahawks and the NBA's Portland Trail Blazers.
1968 - Allen meets fellow student Bill Gates in the computer lab at the private Lakeside School in Seattle.
1974 - Drops out of Washington State to take a job at Honeywell in Boston.
1975 - Allen and Gates found Microsoft (then called Micro-Soft) in Albuquerque, New Mexico. Allen is the company's chief technologist.
1977 - Gates and Allen sign a formal partnership agreement, giving Gates 64% of Microsoft and Allen 36%.
1980 - Microsoft hires Steve Ballmer as its business manager.
1982 - Diagnosed with Hodgkin's disease.
1983 - Allen leaves Microsoft. Gates offers Allen $5 a share for his stake in the company. Allen counters with a demand for $10 a share. Gates rejects that offer and Allen leaves the company with all of his stock. He remains on the board of directors.
1986 - Starts Vulcan Inc. to manage his business and philanthropic interests.
1988 - Buys the Portland Trail Blazers basketball team.
1988 - Establishes the Paul G. Allen Family Foundation.
1997 - Allen purchases the Seattle Seahawks football team.
2000 - The EMP (Experience Music Project) opens in Seattle. The museum, funded by Allen, costs $100 million.
2000 - Steps down from Microsoft's board of directors. By the end of 2000, Allen divests himself of $8.5 billion worth of Microsoft stock.
2002 - Allen gives $14 million to the University of Washington to build the Paul G. Allen Center for Computer Science and Engineering.
2003 - Creates the Allen Institute for Brain Science "to accelerate understanding of the human brain in health and disease," after his mother is diagnosed with Alzheimer's disease. Allen has given the institute more than $500 million since its inception.
2004 - Funds SpaceShipOne, whose mission is to become the world's first commercial space vehicle.
July 15, 2010 - Signs the Giving Pledge, and commits to donate the majority of his wealth to charity.
December 2010 - Gives Washington State University $26 million to build the Paul G. Allen School of Global Animal Health.
April 19, 2011 - Allen's memoir, "Idea Man," is published. In the book, he claims Gates and Ballmer conspired to dilute Allen's shares in Microsoft and force him out of the company while he was recovering from cancer in 1982.
August 2013 - Allen and his band, the Underthinkers, release an album called "Everywhere at Once."
December 9, 2014 - Allen donates $100 million to start an institute to focus on the workings of human cells as a way to battle disease. It will be called the Allen Institute for Cell Science.
January 2016 - An anchor chain on the Tatoosh allegedly damages an estimated 11,000 square feet of coral reef on Seven Mile Beach Park in the Cayman Islands. Allen is not on board at the time. He reaches a settlement with the government of the Cayman Islands before the end of the year.
August 18, 2017 - A team of civilian researchers led by Allen discovers the wreckage of the USS Indianapolis on the floor of the Pacific Ocean, 18,000 feet below the surface. The discovery brings a measure of closure to one of the most tragic maritime disasters in US naval history.
March 2018 - Ranked number 44 on the Forbes World's Billionaires list, with a net worth of $21.7 billion.
October 1, 2018 - In a statement, Allen says that his non-Hodgkin's lymphoma has returned, and that he plans "on fighting this aggressively" while continuing to work on his various projects and his sports teams.
October 15, 2018 - Passes away from complications related to non-Hodgkin's lymphoma, at age 65.