29th
XXIX XXIX XXIX
The first Olympic Games of the modern era (1st Olympiad) were held in Athens in 1896. The Olympics are held every 4 years, so 2008 is the 29th (XXIX) Olympiad. (1896 + 28 * 4 = 2008)
Thye offiial name of the Beijing Olympics are XXIX Olympiad.(29) Go Aussie Thye offiial name of the Beijing Olympics are XXIX Olympiad.(29) Go Aussie
The 2008 Games are considered the XXIX Olympiad (29th Olympiad).
The 2008 Olympics in Beijing will be called the 29th Olympiad. They are actually numbered as if they were held every four years. For example, the cancelled 1916 Olympics would have been the 6th, but the 1920 Olympics were called the 7th. The Olympics were skipped in 1916, 1940 and 1944 due to the wars. So the 29th Olympiad will really be the 26th modern Olympics.
Games of the XXX Olympiad or the 30th Olympics
Officially the XXX Olympiad (30th)
Michael Phelps from USA with 8 Gold Medals in 2008 Beijing Olympics
Yes. The 2008 Olympics is billed as the "Games of the XXIX Olympiad" on the official website. However 3 of the 29 were cancelled due to world wars, so only 26 , including Beijing, have been held.
the 30th olympiad has just ended
The 2008 Summer Olympics were held in Beijing, China. Officially known as the Games of the XXIX Olympiad, the opening ceremony took place on August 8, 2008.
If you're asking about the 2008 Olympics specifically, http://www.olympic.org/uk/games/beijing/index_uk.asp says "BEIJING 2008 Games of the XXIX Olympiad From the 8th August to 24th August 2008". So, presumably 24th August 2008 is the last day.