1942: Tatra started production of Tatra 111 with air-cooled V12 diesel engine. 1  1943â46: The common-rail (CRD) system was invented (and patented by) Clessie Cummins. 2  1944: Development of air cooling for diesel engines by KlÃ¶ckner Humboldt Deutz AG (KHD) for the production stage, and later also for Magirus Deutz.
Aaron is also in the top five for career hits (3,771) and runs (2,174). He is one of only four players to have at least seventeen seasons with 150 or more hits. Aaron is in second place in home runs (755) and at-bats (12,364), and in third place in games played (3,298). At the time of his retirement, Aaron held most of the game's key career power hitting records.
Besting Ruth, beating hate: How Hank Aaron made baseball history. Hank Aaron made sports history on April 8, 1974. On that day he broke Babe Ruth's total home run record -- something few thought could ever be done -- but swinging that bat came with a great personal risk. CNN takes a behind the scenes look at how this sports legend was made. By Jen Christensen, CNN.