Humans have gazed at the night sky for thousands of years, and found it pretty interesting. They learned that you could navigate using the celestial map and, over time, also learned that certain events could be predicted. These learned people were quite prized by their brethren, and their endeavors helped advance our understanding of the world.
a Japanese scientist and optician. Zenbei researched some imported optical instruments, then in 1793, made his first telescope. It had quite a good reputation then he made many telescopes of Galileo type and Kepler type, which widely used among astronomers and feudal rulers. An asteroid 7538 Zenbei was named after him.
