July 20th, 1741

International Moon Day commemorates the day humans first walked on the Moon and celebrates the achievements of space science and technology. This day aims to inspire the public about lunar exploration, acknowledge past achievements, and promote future endeavors to explore and utilize the Moon. Events on this day may include public lectures, educational programs, planetarium shows, and space-themed exhibitions. The day is a reminder of the Moon's importance in the cultural and scientific fabric of human society and an opportunity to foster international cooperation in space exploration. It's a celebration of human curiosity and ambition to explore beyond our planet, encouraging a new generation to dream big and aim for the stars.

World Chess Day recognizes the popularity and intellectual challenge of chess, a game that combines art, science, and sport. This day celebrates the game's contribution to fostering dialogue, understanding, and respect among different cultures, as well as its role in developing concentration, patience, and strategic thinking. Events include chess tournaments, exhibitions, workshops, and educational sessions designed to promote the game and encourage people of all ages and backgrounds to learn and play chess. The day also highlights the game's inclusivity and its ability to transcend language, age, gender, physical ability, and social status. It's a celebration of the enduring appeal of chess and its power to entertain, challenge, and bring people together.