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August 1 is celebrated as National Mustard Day. Mustard is one of the oldest spices and is used extensively all over the world.   It is believed that Mustard originated in Ancient Egypt and the Romans were the first to experiment with mustard preparation as a condiment, The ‘King of the Condiments’ -  Mustard Plant  The mustard plant is a herb and belongs to the family Brassicaceae. The main two species of mustard plants are the white or yellow mustard (Sinapis alba) and brown or Indian mustard (Brassica juncea).   The plants are grown as annual crops and the dry seeds are harvested in early autumn. The plants grow very fast and the blooms are yellow in colour. The plants grow to a height of 5 to 7 feet and bear seedpods on their branches. The brown mustard seedpods contain about 20 seeds each and white contains about 8 seeds.  The mustard grows on all types of soil and is very easy to grow the plant.    Mustard is made from the tiny seeds (white/yel...