...agreed upon. In 1867, the United States took formal possession of Alaska from Russia. In 1892, the first long-distance telephone line between Chicago and New York was formally opened. In 1898, the American flag was raised in Puerto Rico shortly...

...boundary between Maryland and Pennsylvania, the Mason-Dixon line, was agreed upon. In 1892, the first long-distance telephone line between Chicago and New York was formally opened. In 1898, the American flag was raised in Puerto Rico shortly...

...to protect their interests; it's the first American labor organization on record. In 1892, the first long-distance telephone line between New York and Chicago was officially opened (it could only handle one call at a time). In 1968...

...local commercial radio stations. None of them carried live events on a regular basis; to do so required a long-distance telephone line; the station paid for it the same way you would a regular telephone call, albeit at a slightly lower rate...

...to protect their interests; it's the first American labor organization on record. In 1892, the first long-distance telephone line between New York and Chicago was officially opened (it could only handle one call at a time). In 1969...