Olympiad Olympiad An Olympiad (, "Olympiás") is a period of four years associated with the Olympic Games of the Ancient Greeks. During the Hellenistic period, beginning with Ephorus, it was used as a calendar epoch. Converting to the modern BC/AD dating system the first Olympiad began in the summer of 776 BC and lasted until the summer of 772 BC, when the second Olympiad would begin with the commencement of the next games. By extrapolation to the Gregorian calendar, the 3rd year of the ((2019+779)/4 -.5)round 0th Olympiad began in (Northern-Hemisphere) mid-summer 2019. A modern Olympiad refers to a four-year period
United States National Physics Olympiad United States National Physics Olympiad The United States National Physics Olympiad (USAPhO) is a high school physics competition run by the American Association of Physics Teachers and American Institute of Physics to select the team to represent United States at the International Physics Olympiad (IPhO). The team is selected through a series of exams testing their problem solving abilities. Approximately the top 20 finalists are invited to a rigorous study camp at University of Maryland to prepare for the IPhO. The International Physics Olympiad began in 1967 among Eastern European countries and many western countries soon joined in the 1970s.