The International Astronomical Union (IAU) is a global organization founded in 1919, dedicated to promoting and safeguarding the science of astronomy. It brings together professional astronomers from around the world to collaborate on research, share knowledge, and establish standards in the field. The IAU is also responsible for naming celestial bodies and features, ensuring consistency in astronomical terminology. One of the key roles of the IAU is to facilitate international cooperation in astronomy. This includes organizing conferences, publishing scientific journals, and supporting educational initiatives. The IAU also plays a vital role in the development of astronomy as a discipline, fostering connections between astronomers, universities, and research institutions.