“Section 16.¹ In addition to the purposes stated in article nine, section four of this Constitution,² the State may be authorized by law to create debt and to issue bonds, to the amount of fifty millions of dollars, for the payment of compensation to certain persons from this State who served in the Army, Navy, or Marine Corps of the United States during the war between the United States and Spain, between the twenty-first day of April, one thousand eight hundred and ninety-eight, and the thirteenth day of August, one thousand eight hundred and ninety-eight, or who served in the China Relief Expedition, in the Philippines or Guam, between the twenty-first day of April, one thousand eight hundred and ninety-eight, and the fourth day of July, one thousand nine hundred and two, or who served in the Army, Navy, or Marine Corps of the United States during the World War, between the sixth day of April, one thousand nine hundred and seventeen, and the eleventh day of November, one thousand nine hundred and eighteen,”