Athens did not have Olympics. It was hosted by Elis.
2004 was the year the Olympics were held in Athens.
The Olympics were held by and in Elis, not Athens. There were the Istmian games near Athens.
The first modern Olympics was in Athens because it is the capital of the country who had the idea of the original Olympics.
1896 Summer Olympics and 2004 summer Olympics.
The ancient Olympics were held at Olympia, the first modern games were at Athens.
The 1896 Games in Athens. The first Olympic champion in the 100 meter dash was Tom Burke of the United States.