From: eLinux.org
This page has a few tidbits regarding the history of Android
August, 2007 - Google acquires Android Inc.
November, 2007 - Creation of Open Handset Alliance
October, 2008 - The first phone, the G1, ships in the U.S.
February, 2009 - The Open Embedded Software Foundation (OESF) is formed in Japan.
April, 2009 - 1.5 update (codenamed "CupCake")
July, 2009 - Mentor Graphics acquires Embedded Alley
September, 2009 - 1.6 SDK released (codenamed "Donut")
September-November, 2009 - Motorola, Samsung, HTC, Sony/Ericsson announce new Android phones
October, 2001 - 2.0 SDK released (codenamed "Eclair")
November, 2009 - Google announces Maps Navigation program