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 (then age 39) hit 40 home runs in 392 at-bats, ending the 1973 season one home run short of the record. He hit home run number 713 on September 29, 1973, and with one day remaining in the season, many expected him to tie the record.
All Aaron's home runs have been struck for the Braves, albeit some for the Milwaukee Braves and others for the Atlanta Braves. Ruth hit his first 49 for Boston's Red Sox, his next 659 for the Yankees, his last six for the Boston Braves of the NL. Both were 40 years old when they did it. Ruth, however, quit the Braves a week after hitting 714, in a dispute with the club over his status as playing-veep.