From Wikipedia:Afghanistan, Bahrain, Mauritius, Sudan, Tajikistan and Togo won their first Olympic medals. Serbia won its first medal as an independent NOC, having previously won medals as part of Yugoslavia and Serbia and Montenegro. Bahrain, Mongolia (which had previously held the record for most medals without a gold) and Panama won their first Olympic gold medals. A total of 88 countries have won medals, and 55 of them have won at least one gold medal
