How did the invention of barbed wire transform the economy of the american west in the 1870s and 1880s a. many factories emerged in the west to manufacture the wire, creating large numbers of jobs for new immigrants b. the enclosure of the plains into farms and ranches ended the era of the great cattle drives from texas railroads in kansas and nebraska c. cattle production declined because herds no longer had free rein over the praries d. major meat-packing facilities moved from chicago and cincinnati to abilene and dodge city

Taught and wrote on a staggering array of subjects, including physics, chemistry, astronomy, ethics, politics, and literature

In brown v. board of education, the supreme court ruled that: a) schools should remain segregated because they are equal b) schools should no longer be segregated because they are unequal c) schools should be allowed to do whatever they want

20 points! read the excerpt and then respond to the question: "hay-bunau-varilla treaty (panama canal treaty); november 18, 1903 the united states of america and the republic of panama being desirous to insure the construction of a ship canal across the isthmus of panama to connect the atlantic and pacific oceans, the congress of the united states of america having passed an act approved june 28, the president of the united states is authorized to aquire within a reasonable time the control of the necessary territory of the republic of columbia, and the sovereignty of such territory being actually vested in the republic of panama, the high contacting parties have resolved for that purpose to conclude a convention." 1. how does this document illustrate us foreign policy of imperialism?