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.
Aaron set baseball's gold standard. Decades have passed since one swing of Hank Aaron's bat became indelibly etched in Major League Baseball history. What's easy to forget, however, is that his greatness extended far beyond his ability to deposit pitches over the outfield wall. Years later, Aaron still is the gold standard by which all hitters are judged.