Who Invented the Chalkboard?

Who Invented the Chalkb...

Mr. James Pillans is regarded as the inventor of the chalkboard (or blackboard). He was the Headmaster of a high school in Edinburgh, Scotland. However, the experts on the history of the chalkboard aren’t sure when he invented it. Blackboard and Chalkboard The word chalkboard is used...
Who Invented the Pen?

Who Invented the Pen?

Introduction The ability to write is one of those things that men believe sets them apart from animals. It is also one of the oldest. Archeologists have found cave drawings from the time of primitive humans. These were made with sharpened rocks, the first writing instruments. Early...
Who Invented the Pencil Sharpener?

Who Invented the Pencil...

A look at the history of pencil sharpeners shows that the Frenchman Bernard Lassimone was the first to get a patent for pencil sharpeners in 1828. Following his invention, other designers made improvements and refinements. The Early Pencil Sharpeners Pencils had been invented before the...
Who Invented the Pythagorean Theorem?

Who Invented the Pythag...

It is said generally that the Pythagorean Theorem was invented by a Greek named Pythagoras. Obviously it was named after him and is said to have been discovered or invented by the year 530 BC. However, researchers have found proof that even though documents do date and trace back to him...
Who Invented Astrology?

Who Invented Astrology?

The Age of the Early Babylonians If you would check out the historical records of astrology, you would probably see that the people who invented astrology are the Babylonians. This belief is supported by earliest pieces of astrological documents such as the Enuma Anu Enlil. This...
Who Invented Boolean Logic?

Who Invented Boolean Lo...

The Boolean logic (also known as Boolean algebra) is an efficient logic operations system that is very useful in studying various fields like computer science, electronics and digital electronics. The system became more popular when Claude Shannon used electric circuits and relays as an...
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