Simplify the following text for a Grade 6 native English-speaking person.
Original: French journalist Franklin Loufrani registered the iconic smiley face image as a trademark in France in 1971 ( despite the undeniable proof of its much earlier existence ) , and he created `` The Smiley Licensing Corporation , Ltd. '' to sell , license , and advertise the smiley face image in the United Kingdom and Europe .
Simplified: Smiley has been a registered trademark since 1971 .