In addition to puerto rico which territories were acquired by the united states was part of the peace treaty that ended the spanish-american war

The answer is Guam, and the Philippines islands.

The treaty signed after the victory of the U.S. in the Spanish-American War was the Treaty of Paris (December 10, 1898). In the Treaty, not only Spain renounced its claim to Cuba, which later became a protectorate of the U.S., but also ceded Guam, Puerto Rico, and the Philippines islands, this latter was sold for $20 million approximately.

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.