776 b.C.
The first olympiad was held in 776BCE The first modern olympiad was held in 1896
The games of the I (first) Olympiad held in Athens Greece in the year 1896.
The 2004 Olympic Games were held in the first year of the 28th Olympiad, which ended in 2007. The Beijing Games were held in the first year of the 29th Olympiad, and so on.
The first modern Olympic Game was held in a stadium in 1870.
The XXX Olympiad will be held in the Summer of 2012.
The Games of the XXX (30th) Olympiad were held in 2012, in London.
In the modern era, the first Olympiad was held in Athens, Greece, in 1896.
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)
at first, it was held randomly; but since the world war II, the chess olympiad has been held at a time interval of every 2 years.
1947
Beijing, China.
The Games of the IV Olympiad were held in London in 1908.