Original sentence: For example, the first number in the second row is 0 + 1 = 1, whereas the numbers 1 and 3 in the fourth row are added to produce the number 4 in the fifth row.It is named after Blaise Pascal in much of the western world, although others studied it centuries before him in India, Persia, China, and Italy
Edited sentence: For example, the numbers 1 and 3 in the fourth row are added to produce 4 in the fifth row.It is named after Blaise Pascal in much of the western world, even though others studied it centuries before him in India, Persia, China, and Italy