Complex sentence: Works Guilds would try to outdo each other, in the late 18th century this became a matter for competiton, milkmaids in London carried garlands on their heads with silver objects on them, but the crown had to go to the chimney sweeps.
Split into simpler sentences: Works Guilds would try to outdo each other, so in the late 18th century this became a matter for competiton. Milkmaids in London carried garlands on their heads with silver objects on them, but the crown had to go to the chimney sweeps.