Simplify the following text for a Grade 10 native English-speaking person.
Original: In 1865 KekulÃ published a paper in French ( for he was then still in Francophone Belgium ) suggesting that the structure contained a six-membered ring of carbon atoms with alternating single and double bonds .
Simplified: In 1865 KekulÃ published a paper in French suggesting that the structure contained a six-membered ring of carbon atoms with alternating single and double bonds .