Explanation

Braille education system was introduced by Braille for Blinds.

Braille education system Creator: Louis Braille

Additional information 

Braille is a system that uses combinations of raised dots to spell letters and numbers.

Louis Braille was a French educator and the inventor of a reading and writing system

Braille was blinded at the age of three in one eye

Explanation

List of Countries Landed on the Moon

Explanation

Euclid was an ancient Greek mathematician active as a geometer and logician

who established the foundations of geometry that largely dominated the field until the early 19th century.

Died: Alexandria, Egypt

Explanation

In 1787, the French scientist Jacques Charles discovered that the volume of a gas varies when we change its temperature, keeping the pressure constant.

Jacques Charles is known for Charles's Law, which states that the volume of a gas is directly proportional to its absolute temperature (in Kelvin) when pressure is held constant.

This relationship is fundamental in gas behavior studies.

Explanation

In 1714, Dutch scientist  Daniel Gabriel Fahrenheit invented the first reliable thermometer,

using mercury instead of alcohol and water mixtures.

In 1724, he proposed a temperature scale which now bears his name.

Galileo made his first telescope in 1609

Barometer Inventor: Evangelista Torricelli

Steam engine Inventor: Thomas Savery

Microscope Inventor: Zacharias Janssen