To this day no one really knows who invented the first telescope but we know about Hans Lippershey, an eyeglass maker. Who was the first person to apply the patent for the telescope in 1608.
And he had done it. He'd created a telescope that magnifies the object three times closer. Later the Netherlands Government found out about his discovery and paid him some money to make some more copies.
Its hard for us to identify one individual creator of the modern day telescope. I think that multiple people worked on improving the telescope over time.