Modern ways to entertain saw the light of the day on 17th July 1955 as Disneyland was opened for public in the United States of America. Another way to comfort the human race was found when American Willis Haviland Carrier developed the first air-conditioning system. Grace Kelly fans, however, had the last chance to see their favourite actor as her final movie High Society was released on this day. While July 17 has a good share of amusement it fades when we look at the disasters that happened on this day. On this day the US ammunition ships exploded at Port Chicago, Papua New Guinea and Java Island were struck by earthquake and tsunami, and three flights crashed. The disasters remind us to be extra cautious in our dealings with human lives and nature. July 17th is the day when 22 African countries boycotted Olympic Games’ Opening Ceremony in 1976 over apartheid system in South Africa. It was good news for aspiring dentists in America as the first dental school, the Harvard School of Dental Medicine, was set up in Boston, Massachusetts. The most astonishing event of this day is that archrivals U.S.A and U.S.S.R joined hands, albeit in space science, for the first time with the Apollo-Soyuz Test Project.