A centenary is an event to celebrate the 100th anniversary of an event. Related are bi-centenary (200 years), tri-centenary (300 years etc).
The first recorded centenary was the bi-centenary of the founding of Virginia. This celebration was held in Jamestown in 1807. State nickname: Old Dominion Other U.S. States Capital Richmond Largest city Virginia Beach Governor Mark R. Warner (D) Official languages English Area 110,862 km² (35th) - Land 102,642 km² - Water 8,220 km² (7. ... Jamestown is the name of the following places in the United States of America: Jamestown, California Jamestown, Colorado Jamestown, Indiana Jamestown, Kansas Jamestown, Kentucky Jamestown, Louisiana Jamestown, Missouri Jamestown, New York Jamestown, North Carolina Jamestown, North Dakota Jamestown, Ohio Jamestown, Oklahoma Jamestown, Pennsylvania Jamestown, Rhode Island Jamestown, South Carolina Jamestown... 1807 was a common year starting on Thursday (see link for calendar). ...
On March 11th, 1988, the centenary celebrations of De Beers took place in Kimberly and a banquet was held to close the Kimberly Mine (aka the "Big Hole").
The man chosen to evaluate the Centenary was Gabi Tolkowsky, famed in the diamond industry as one of the most accomplished cutters in the world.
He was asked to cut the Centenary, and late in 1988 Tolkowsky, two master cutters - Geoff Woolett and Jim Nash - together with a handpicked group of engineers, electricians and security guards set to work in a specially designed underground room in the De Beers Diamond Research Laboratory in Johannesburg, South Africa.