for the rights of women but because in overturning the case, the Judicial Committee of the Privy Council engendered a radical change in the Canadian judicial approach to the Canadian constitution, an approach that has come to be known as the "living tree doctrine". The five women who initiated the case are known in Canada as the Famous Five. In November, the 1929 Grand Banks earthquake occurred off the south coast of Newfoundland in the Atlantic Ocean. It registered as a Richter magnitude 7.2 submarine earthquake centered on Grand Banks, broke 12 submarine transatlantic telegraph cables and triggered a tsunami that destroyed many south coast communities in the Burin Peninsula area, killing 28 (as of 1997, Canada's most lethal earthquake). Ross-Loos Medical Group is established in downtown Los Angeles by two physicians, Donald E. Ross and H. Clifford Loos - the first HMO in the United States. The Mexican Cristero War continued in 1929 as clerical forces attempted an assassination of the provisional president in a train bombing in February. The attempt failed. Plutarco Calles, at the center of power for the anti-clerics, continued to gather power in Mexico City. His government was considered an enemy to more conservative Mexicans who held to traditional forms of government and more religious control. Calles founded the National Revolutionary Party early in the year to increase his power; a party which was, ironically, seen by foreigners as fascist and which was in opposition to the Mexican Right. A special election was held in this year, which Jose Vasconselos lost to Ortiz Rubio. By this time, the war had ended. The last group of rebels was defeated on June 4, and in the same month US Ambassador Dwight Morrow initiated talks between parties. On June 21 an agreement was brokered ending the Cristero War. On June 27, church bells rang and mass was held publicly for the first time in three years. The agreement heavily favored the government, as priests were required to register with the government and religion was banned from schools. The major event of the year for the United States was the stock market crash on Wall Street, which was to have international effects and be widely regarded as the inciting incident of the Great Depression. On September 3, the Dow Jones Industrial Average (DJIA) peaked at 381.17, a height it would not reach again until November 1954. Then, from October