Urticaria (hives) Introduction. Urticaria â also known as hives, weals, welts or nettle rash â is a raised, itchy rash that appears on the skin. It may appear on one part of the body or be spread across large areas. The rash is usually very itchy and ranges in size from a few millimetres to the size of a hand.
When was the first baby formula invented? in 1869 by Justus Von Leibig, this was a simple formula of potassium bicarbonate, wheat and malt flour and was mixed with warm cows milk. Swiss chemist Henri Nestle created th â¦ e first complete formula (no addition of cows milk, just water) in 1870.hen was the first baby formula invented? in 1869 by Justus Von Leibig, this was a simple formula of potassium bicarbonate, wheat and malt flour and was mixed with warm cows milk. Swiss chemist Henri Nestle created th â¦ e first complete formula (no addition of cows milk, just water) in 1870.
The agricultural revolution was a time of agricultural development between the 18th century and the end of the 19th century, during this time there was a massive and rapid increase in agricultural productivity and improvements in farm technology. Jethro Tull (inventor) Jethro Tull invented the seed drill in 1701. He was educated at Oxford, England where studied law, he later studied agriculture during his travels across Europe. Jethro Tull inherited land in the southern part of England where he put into practice his study of agriculture.