Profile America — Monday, February 17th. This month -- and some sources cite this date -- is the anniversary of the 1766 birth of Thomas Malthus in Dorking, England. Given that birthplace, he perhaps naturally became an economist, demographer and statistician. He's remembered for "The Principle of Population," a 1798 essay foretelling widespread famine caused by population growth far outstripping the food supply. While the forecast remains unrealized, his theory of demand-supply mismatches was a precursor to later theories about the Great Depression. When Malthus wrote his essay, the world population was a little under 1 billion. Currently, the global population is well over 7.1 billion people. Profile America is in its17th year as a Public Service of the U.S. Census Bureau.