"Koine" .... a local Greek dialect used informally in conversation.
I believe it is Rise and Growth of Railroads because now American have a chance to travel and that's how new towns and suburbs started. Also, shipments of steel, coal, and lumber were in high demand which led people to open up markets in stops to sell goods.
Answer:
The Answer would be <em>Air Commerce Act.</em>
Year - 1926!
Hope it helps!
