Prior to the Closing Ceremony, an expo-style display area was set up where each team had booths to discuss their projects one-on-one before everyone filed into the auditorium for the formal event.

FORBES: Singularity U Launches 2012 Class: Bring On The Future!

And it rarely if ever releases information about its upcoming products until a formal announcement event.

CNN: Alleged iPad 2 case is 'just a guess'

There is no formal leader, organization or event publicity, and everybody participates for different reasons.

BBC: Buenos Aires�� Critical Mass

In July, Bradley offered his formal endorsement of Gore at an event in Green Bay, Wisconsin.

CNN: Bradley calls Democrats to Gore-Lieberman standard

Representatives of teacher's unions, formal education teachers as well as non-formal education teachers also attended the event.

UNESCO: EDUCATION

The device, which received no formal introduction during its host device's launch event, first appeared in the "press kit" bag that attendees received on the way out the door.

ENGADGET: Samsung HM5100 Bluetooth S Pen makes a surprise debut in our Note 10.1 'press kit,' we pencil in a chat (hands-on)

Unlike the parade, this event consisted mostly of veterans, and was formal and intimate.

BBC: After Iraq: Should the US hold war parades?

We knew a January 30th event was happening and this week we got the formal invite to the BlackBerry 10 unveiling.

ENGADGET: Editor's Letter: Looking back

IR--An alliance is a formal treaty or agreement between states, commonly for the purpose of mutual aid in the event of war against a common enemy.

ECONOMIST: No to NATO expansion

Laser event reports have increased steadily since 2005, when the Federal Aviation Administration (FAA) created a formal reporting system to collect information from pilots.

FORBES: The Growing Threat of Lasers Pointed At Airplanes