know here all things of Wool and cotton was invented by which scientist | Harappas discovered what ?
question : Electricity was invented or discovered by whom ?
answer : The famous scientist named Harappas was the inventor of Wool and cotton in the year of 4-5th millennium BC.
question : Harappas invented which thing and when ?
answer : In ‘4-5th millennium BC’ year the well known scientist whose name is ‘ Harappas ‘ was the inventor of Wool and cotton.
question : when and by whom Wool and cotton was discovered ?
answer : Wool and cotton was the discovery of Harappas which was discovered in 4-5th millennium BC year.
so in short we can say –
invention : Wool and cotton
inventor : Harappas
year : 4-5th millennium BC
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