Research in Motion releases the BlackBerry, one of the first of what were called personal digital assistants.

The handheld device combined a mobile pager with email capabilities. Later versions allow texting and wireless Internet access.

3M provides innovations for dental offices with the Zaris® professional tooth-whitening system using its microreplication technology to whiten teeth faster.

3M introduces its high-efficiency dental mirror.

The company uses a new type of reflective film made from polyester for its mirror.