The human history of the west coast of North America[1] is believed to stretch back to the arrival of the earliest people over the Bering Strait, or alternately along the ice free coastal islands of British Columbia (See[1], through the development of significant pre-Columbian cultures and population densities, to the arrival of the European explorers and colonizers. The west coast of North America today is home to some of the largest and most important companies in the world,[2] as well as being a center of world culture.
^The term North America has a variety of meanings, including just the United States and Canada, those two countries plus Mexico, or all of the continent from Panama north; this article uses this most expansive definition.
^Ranked by 2007 market valuation, nearly 10% of the 200 largest publicly traded companies in the world are based on the west coast of North America: Microsoft, Chevron, Cisco Systems, Intel, Wells Fargo, Google, Amgen, Hewlett-Packard, Qualcomm, Oracle, Apple Computer, eBay, Walt Disney, Yahoo, Washington Mutual, and Occidental Petroleum. (SeeTop ranked publicly traded companies. Accessed 2008-02-01.) Of the 200 largest privately held companies in the United States (ranked by 2006 revenue), over 20% are based on the west coast of North America, including brand names Levi Strauss & Co. and E&J Gallo Winery, and global firms Bechtel and Parsons. (SeeTop ranked privately held companies. Accessed 2007-01-02.) Finally, of the nearly 800 billionaires in the world (as ranked by Forbes magazine in 2006) nearly 100 (or over 10%) live on the west coast of North America, including Bill Gates, listed as the wealthiest individual in the world. (SeeList of billionaires. Accessed 2007-01-02.)