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Embattled smartphone company BlackBerry Limited plans to go private in a $4.7 billion deal being orchestrated by its largest shareholder.
Here are important milestones in the history of the company formerly known as Research In Motion:
* February 1985 - Mike Lazaridis and Douglas Fregin co-found Research In Motion in Waterloo, Ontario, the Canadian university city where Lazaridis studied.
* 1989 - RIM develops a network gateway called RIMGate, precursor to its BlackBerry Enterprise Server.
*1992 - Jim Balsillie joins RIM as co-CEO, mortgaging his house and investing $250,000.
* 1994 - RIM launches a handheld point-of-sale card reader, which verifies debit and credit transactions directly to a bank.
* 1995 - RIM builds its own radio modem for wireless email.
* 1997 - RIM lists on the Toronto Stock Exchange, raising more than $115 million.
* 1999 - RIM launches BlackBerry Limited email service, first wireless device to synch with corporate email systems. Lists on Nasdaq.
* 2002 - RIM adds voice calls to the BlackBerry Limited.
* 2004 - RIM's surpasses 1 million BlackBerry Limited users.
* 2007 - Apple Inc launches first iPhone. RIM passes 10 million subscribers, briefly becomes most valuable company in Canada. Google's open source Android platform is unveiled. It launches in October 2008.
* 2008 - RIM launches BlackBerry Storm, its first touchscreen and keyboard-less device. The screen uses a tactile feedback technology known as haptics, allowing a user to click down to select actions. The model bombs.
* 2010 - RIM buys QNX Software Systems for C$200 million. It will later use its software for its BlackBerry 10 devices.
* 2011 - RIM launches PlayBook, which is panned for lacking core BlackBerry functions such as email and organizer functions. It later books a writedown on unsold PlayBook inventory. Company slashes financial forecasts, the first of many revisions, which it then misses. Says will slash more than 10 percent of its workforce. Resists investor pressure for co-CEOs Mike Lazaridis and Jim Balsillie to step down.