1. In fact, it's hard to tell who was the first person in the world to see the moon with his eyes? Because it is easy to observe a full moon when human beings have evolved eyes with visual ability. This can be done in the early stage of human evolution before primitive people. So no one can know for sure who was the first person to see the moon.

2./kloc-One day at the beginning of the 7th century, Hans Lippershey, the owner of an optical shop in a small Dutch town, arranged a convex lens and a concave lens in a line to check the quality of the ground lenses. Looking through the lens, he found that the church spire in the distance seemed to be getting bigger and closer, so he accidentally discovered the secret of the telescope. 1608, he applied for a patent for his telescope, and made a binoculars according to the requirements of the authorities. It is said that dozens of opticians in the town claimed to have invented the telescope, but Kenneth Lieberthal is generally regarded as the inventor of the telescope.

The news of the invention of the telescope soon spread in European countries. After learning the news, Italian scientist Galileo made one himself. The first telescope can only magnify the object three times. A month later, the second telescope he made can be magnified 8 times, and the third telescope can be magnified 20 times. 1609 10 in June, he made a telescope with a magnification of 30 times. Galileo observed the night sky with a self-made telescope and found for the first time that the surface of the moon was uneven, covered with mountains and craters.

The above shows that Galileo was the first person to observe the craters on the surface of the moon with his improved telescope.