Great Canadian Flag Debate Great Canadian Flag Debate The Great Canadian Flag Debate (or Great Flag Debate) was a national debate that took place in 1963 and 1964 when a new design for the national flag of Canada was chosen. Although the flag debate had been going on for a long time prior, it officially began on June 15, 1964, when Prime Minister Lester B. Pearson proposed his plans for a new flag in the House of Commons. The debate lasted more than six months, bitterly dividing the people in the process. The debate over the proposed new Canadian flag was ended by closure
Great Debate (astronomy) Great Debate (astronomy) The Great Debate, also called the Shapley–Curtis Debate, was held on 26 April 1920 at the Smithsonian Museum of Natural History, between the astronomers Harlow Shapley and Heber Curtis. It concerned the nature of so-called spiral nebulae and the size of the universe; Shapley believed that distant nebulae were relatively small and lay within the outskirts of Earth's home galaxy, while Curtis held that they were in fact independent galaxies, implying that they were exceedingly large and distant. The two scientists first presented independent technical papers about "The Scale of the Universe" during the day and then