Olympiad dating system
The games took place during the first full moon after the spring solstice, which coincides with the present day middle of July.This was the hottest period of the year and many athletes found the heat unbearable.Its day is 243 Earth days, and its year is 225 Earth days.The extremely long rotation periods of Venus and Mercury is thought to be caused by mutual gravitation pull; Mercury is sometimes thought to be an escaped moon of Venus.It has a day length of about 25 hours, and a year equal to 687 Earth days.It has been suggested that Mars may hold life, but it has not been proven.
The catalogue of the Olympiads was later completed by Aristotle, Eratosthenes, Phlegon of Tralles and Iulius Africanus.
The first part, a written test, covers the terrestrial planets (excluding Earth), the Earth's moon, Phobos, Deimos, and Io, the asteroid belt, and near-Earth asteroids.
The second part, a hands-on/interpretive task, covers the geologic characteristics and evolution of the rocky bodies.
Venus is often called Earth's sister planet because of its close proximity to Earth, and because of its similar diameter and mass.
People even thought it could hold life, but sadly people discovered that the greenhouse effect on Venus raised the surface temperature to the highest in the Solar System.