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What civilization first developed a civil service system invented gunpowder and manufactured porcelain?
Chinese
When were diapers invented?
they were invented in 1887 People have used diapers of one sort or another throughout the history of mankind. Modern cloth diapers were invented during the 19th century and mass production in the US started in the late 1880's. Disposable diapers have been manufactured since the 1950's.
Who invented the tippler toilet?
I believe that a company in Halifax, West Yorkshire, produced the first tipper system but the majority were then manufactured by J. Duckett & Sons of Burnley, Lancashire.
Who invented and when were the clothes invented?
Clothes were invented 1000ends of years ago God first invented the clothes
Who invented the bed and when?
It was invented just before you were born and me AND your MOM invented it
Who invented the chalk?
Chalk was not invented. It occurs naturally.
Who first invented chalk and what time?
Chalk was not invented. It occurs naturally.
Who invented sidewalk chalk?
Sharon McKay invented sidewalk chalk, after she wrote books that included it.
How is commercially-sold blackboard chalk manufactured?
lkjl
Where was chalk invented?
in the himalayers
How was chalk invented?
Chalk wasn't "invented"; it exist naturally in large mineral deposits such as those at the cliffs of Dover.
When was the chalk board invented?
It was invented in 1801 by James Pillans in Edinburgh, Scotland.
Who invented white chalk?
WHITE Chalk isn't something that was invented. Chalk is a soft porous rock which is a form of limestone made up of the mineral calcite. Blackboards and blackboard chalks have been around since the late 1700's.
When was modern day caulk invented?
chalk was invented by a man named hymen bean in 1896
Why was the whiteboard invented?
== == Teachers who were allergic to calcium sulphate or chalk.
Who invented the chalk line hand tool?
An Unknown person
What did people use to rub out mistakes before rubbers were invented?
they used either the rain or chalk erasers because they only had chalk.
