what colours are the medals?
Gold, silver, and bronze
1896 Summer Olympics
Winners were given a silver medal, while runners-up received a copper medal. Retroactively, the IOC has converted these to gold and silver, and awarded bronze medals to third placed athletes. 
who took part in the modern olympic games Fourteen nations; all European, and 241 athletes (all males) when was this? From 6 to 15 April 1896 where did it take place? Athens, Greece which were the venues? Panathenaic Stadium, Marathon, Bay of Zea, Zappeion, Kallithea, and Athens Lawn Tennis Club was there an opening ceremony conducted? Yes where? Panathenaic Stadium has it been used for any other purpose? Yes, hosted the opening ceremony of the 1997 World Championships in Athletics which other olympics have been held here? Zappas Olympics and 2004 Olympic was any reconstruction work done to it? Yes when? 139/140-143-144 AD by whom? Herodes Atticus who is he? A Greco-Roman politician and sophist who served as a Roman senator does he have any relation to the games? UNANSWERABLE where was the closing ceremony of the original games held? Panathenaic Stadium which sports were part of the games? Marathon, cycling, fencing, gymnastics, sailing, shooting, swimming, tennis, weightlifting, and wrestling who organised the games? International Olympic Committee (IOC) which nations participated in it? Mostly European nations
wiki:11543133
1896 Summer Olympics [SEP] Introduction
The main venue was the Panathenaic Stadium, where athletics and wrestling took place; other venues included the Neo Phaliron Velodrome for cycling, and the Zappeion for fencing. The opening ceremony was held in the Panathenaic Stadium on 6 April, during which most of the competing athletes were aligned on the infield, grouped by nation. After a speech by the president of the organising committee, Crown Prince Constantine, his father officially opened the Games. Afterwards, nine bands and 150 choir singers performed an Olympic Hymn, composed by Spyridon Samaras, with words by poet Kostis Palamas.