Cyril P. Callister Cyril P. Callister Cyril Percy Callister (16 February 1893 – 5 October 1949) was an Australian chemist and food technologist who developed the Vegemite yeast spread. The son of a teacher and postmaster, and one of seven children, he attended the Ballarat School of Mines and later won a scholarship to the University of Melbourne. He gained a Bachelor of Science degree in 1914 and a Master of Science degree in 1917. In early 1915, Callister was employed by food manufacturer Lewis & Whitty, but later that year he enlisted in the Australian Imperial Force. After 53 days, however, he
Shortages in Venezuela controls have been determined to be the cause of shortages according to many economists and other experts. However, the Venezuelan government blamed other entities such as the Central Intelligence Agency (CIA) and smugglers for shortages, and has stated that an "economic war" had been declared on Venezuela. During the presidency of Chávez, Venezuela faced occasional shortages owing to high inflation and government financial inefficiencies. In 2005, Chávez announced the initiation of Venezuela's own "great leap forward", following the example of Mao Zedong's Great Leap Forward. An increase in shortages began to occur that year as 5% of items became unavailable