On this day: The first tri-color traffic signal was installed in Detroit in 1920On this day in 1920, the way people drove was changed forever when a Detroit traffic cop installed a four-way, tri-color traffic signal on Woodward Avenue in Detroit.
Head-and-neck restraints and soft walls top list of NASCAR's biggest safety improvementsTo mark NASCARโs 75th season, The Associated Press interviewed 12 key contributors to the industry on multiple topics.
๐ฐTop 20 richest billionaires in FloridaThe U.S.'s wealthiest billionaires are mostly concentrated within just a couple of industries: finance and investments, and technology.