The Galilean Telescope, named after its inventor Galileo Galilei, is a type of telescope that uses lenses to magnify objects. This type of telescope has been widely used throughout history and has played a critical role in the development of astronomy. Despite its importance, the Galilean Telescope has several other names that have been used interchangeably over the years. These names include the Galilean Glass, the Italian Telescope, and the Dutch Telescope. Each of these names reflects the telescope's origins or descriptions of its design. Regardless of what it's called, the Galilean Telescope remains a valuable instrument in scientific observation.