Original: In Smithson's will, he stated that should his nephew, Henry James Hungerford, die without heirs, the Smithson estate would go to the government of the United States to create an "Establishment for the increase & diffusion of Knowledge among men".
Simplified: In Smithson's will, he stated that should his nephew, Henry James Hungerford, die without heirs, the Smithson estate would go to the United States of America for creating an "Establishment for the increase & diffusion of Knowledge among men".