What is a major event in sri lanka ?

Which one of the following statements best characterizes change to agriculture in the united states since 1900

Me i really need which of these was an accomplishment of the han dynasty? the invention of the seismograph finding a water passage to europe the invention of the ballpoint pen the invention of the abacus

This amendment made cuba an american protectorate and forced cuba to cede guantanamo bay to the u.s.