When was the first blackboard used?

Answer The blackboard was first used in 1801 in schoolrooms on prairies to give students a visual means to study and learn large concepts. James Pillans of Scotland is credited with being the first to use... Read More »

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When did James Pillans invent the blackboard?

James Pillans invented the blackboard circa 1801, when he was the headmaster of the Old High School of Edinburgh, in Scotland. The invention quickly became widespread, revolutionizing the way teach... Read More »

When was rubber first used?

Rubber was first used in pre-Colombian times, as a round ball for amusement by natives of the Amazon River in Brazil. According to the site Chemistry Explain, English manufacturer Samuel Peal used ... Read More »

When was dna fingerprinting first used?

DNA fingerprinting was developed in England in 1985 by Sir Alec Jeffreys. DNA was first introduced as evidence that same year, but it wasn't until 1988 when Colin Pitchfork was on trial for the rap... Read More »

When was the chisel first used?

According to David M. Ewalt, writer for, chisels have been around since ancient history. He says that archaeologists have found flint chisels dating back 10,000 years. In ancient times, ... Read More »