In 1898, Spain ceded its sovereignty over Puerto Rico to the United States. Since then, Puerto Rico has been a territory controlled by the American government. Historically, the Puerto Rican people have asked for freedom to determine their own future.   Close This Window function jchange(o) { var fold_image = new Array(); fold_image[0] = "/images/openarrow.gif"; fold_image[1] = "/images/closedarrow.gif"; if(document.getElementById(o).style.display=='none') { document.getElementById(o).style.display='block'; if(document.getElementById('nfolding')) { document.getElementById('nfolding').src=fold_image[0]; } } else { document.getElementById(o).style.display='none'; if(document.getElementById('nfolding')) { document.getElementById('nfolding').src=fold_image[1]; } } }