E.H. Thiellay, a British pharmacist and perfumer, along with Leon Hugo of Paris, a hairdresser, invented peroxide, a blonding chemical. The product was introduced in 1867 at the Paris Exposition. It was considered the first hair bleach.
Daily Hair Tip
Whenever possible limit or avoid using a brush on curly tresses. Instead use a widetooth pick or comb with "hair friendly" edges that won't rip or tear fragile curls.