How did immigration play an important role in industrial growth during the gilded age?

Historians are concerned with the accuracy of their writings and readings but are also aware of the inability of authors to know every angle of every story biases, perspectives, beliefs, and a variety of other differences history being told by one person at a time no one being totally accurate, as hard as we try really need on this, and you^^

Aheard of sheep moves up in the mountain to graze during summer and migrated to the valley during winter what type of migration do the sheep follow

What important waterway was controlled through the victory at fort crown point? the st. lawrence river the hudson river the great lakes lake champlain