Simplify the following text for a Grade 12 native English-speaking person.
Original: Staunton proposed and then took the lead in organising the first ever international tournament , as he thought the Great Exhibition of 1851 presented a unique opportunity , because the difficulties that obstructed international participation would be greatly reduced .
Simplified: Staunton proposed and then took the lead in organizing the first ever international tournament in 1851 . He thought the Great Exhibition of 1851 presented a unique opportunity , because the difficulties that obstructed international participation would be greatly reduced .