Mathematics
T1
In 1150 CE, Bhaskara II solved a single equation: x squared times 61 plus 1 equals y squared. His method (chakravala — 'cyclic') yielded x=226153980, y=1766319049. Five centuries later, in 1657, Fermat posed exactly this equation as a challenge to European mathematicians — claiming it had no known solution. Bhaskara had solved it 507 years earlier.
From the source
“From these, by combining like sets, roots for additive unity come out (in whole numbers) L 226153980 G 1766319049 A}. ”
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