I'm pretty sure it's Anthony Ashley-Cooper
Italian and Jewish immigrants played a major role in the era of immigration between "<span>c. 1880 and 1920," although of course some immigrants from both of these groups came to the US before this period. </span>
There are 5 significant figures in the number 84062.
There are 5 digits at all, and none of them are leading zeros (they are always insignificant). Also there are no trailing zeros (they are sometimes considered insignificant).
And because we know nothing about the precision of the original data, if this number is obtained from some calculations, we have to assume all digits significant.
Zero inside the number is significant, too, because it gives important...
economic classes
ex: lower class, middle class, high class