They were the first devised by Benjamin Franklin in 1784. The first eyeglass frame temples were made by Spanish craftsmen in 1600's. They affixed ribbons of silk or strings to the frame and loop them over the user's ears. The new types of eyeglasses carried out to China by Spanish and Italian missionaries.
The Asteroid Belt is located between the orbits of Mars and Jupiter: so it can only be one of the two planets that is the closest to it. Mars is located approx 250 million km from the Sun and Jupiter - 750 million km from the Sun. Mars is closer: so the correct answer is: Mars is the planet closest to the Asteroid belt.
Venus, Venus: ultraviolet imagingNASA/JPLsecond planet from the Sun and sixth in the solar system in size and mass. No planet approaches closer to Earth than Venus; at its nearest it is the closest large body to Earth other than the Moon. Because Venusâs orbit is nearer the Sun than Earthâs, the planet is always roughly in the same direction in the sky as the Sun and can be seen only in the hours near sunrise or sunset. When it is visible, it is the most brilliant planet in the sky.