The document discusses the growth of railroads in Texas in the late 19th century. Railroads helped accelerate Texas' economic development by providing a more reliable and cheaper way to ship goods compared to rivers and roads. To encourage railroad expansion, the state enacted land grant laws that gave railroad companies land to sell in order to finance new track construction. This led to over 30 million acres of public land and 6,000 miles of new track being laid between 1876-1889, connecting more cities and regions across Texas.