Complex sentence: Domestos was first produced in 1929 by Wilfred Handley, an industrial chemist from the North East of England, and sold door-to-door by salesmen who refilled stoneware jars bought by the customers.
Split into simpler sentences: Domestos was first produced in 1929 by Wilfred Handley, an industrial chemist from the North East of England. The product was originally sold door-to-door by salesmen who refilled stoneware jars bought by the customers.