March 19: On this day in the world of tech

We flip back the pages of tech history to know the important technology events that took place on March 19:

2009: Microsoft announced the global availability of Windows Internet Explorer 8 on March 19, 2009 for Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008 and Windows 7. It brought new opportunities for Web developers. By incorporating the Internet Explorer Developer Toolbar directly into Internet Explorer 8, Microsoft enabled developers to quickly debug HTML, CSS and JavaScript. These enhanced capabilities empowered developers to deliver a better Web experience through creating applications for consumers and enterprises.

2009: Carol Bartz, the former president and CEO of the Internet services company Yahoo!, retired from the Intel elects board on March 19, 2009.

2008: After the appeal process, Google failed to win the right to register the term "Gmail" for its its free Web-based e-mail service as a wide-ranging European trademark on March 19, 2008. The Office for Harmonisation in the Internal Market (OHIM), the body responsible for European community trademarks, rejected the appeal of Google after a battle with German-born venture capitalist Daniel Giersch, who owns the Gmail trademark, which is short for "Giersch mail." Thus, Google changed the name of its free Web-based e-mail service to "GoogleMail" in Germany after losing the battle to Giersch.

2007: Google acquired Adscape, a small in-game advertising company based in San Francisco California, for estimated $23 million on March 19, 2007.

2007: Justin.tv - a website that allows people to create and broadcast live video - went live on March 19,2007. The website was created by Justin Kan, Emmett Shear, Michael Seibel and Kyle Vogt. Its user accounts are termed "channels", and the user-generated live video content are called "broadcasts".

2001: Palm unveiled the Palm, m500 series handhelds - the Palm m500 monochrome handheld and the Palm m505 color handheld. The Palm m500 had a 33MHz Motorola Dragonball VZ, a 160×160 resolution monochrome screen, 8MB RAM, the Palm OS 4.0, and a lithium-polymer battery, while the Palm m505 had a 33MHz Motorola Dragonball VZ, a 160×160 resolution 16-bit color screen, 8MB RAM, a Secure Digital slot, the Palm OS 4.0, and a lithium-polymer battery.

1997: Apple unveiled the 20th Anniversary Macintosh computer (abbreviated to TAM by its followers), a limited-edition personal computer that was released in 1997 in celebration of the company's 20th birthday. It was priced at US $7,499. It was met with lukewarm sales, and was derided for its usurious price.

1985: IBM announced to discontinue the PCjr (read "PC junior"), a personal computer that was tailored to the needs of the entire home, on March 19, 1985. It was IBM's first attempt to enter the home computer market. Reportedly, the machine never quite caught on in the marketplace largely due to competition from Apple's Computer Apple IIc. Thus, it was decided to be continued. The company sold only 240,000 units of the PCjr.