Uranium-235 was discovered by a French-American physicist.
The 1967 Detroit Lions season was the 38th season in franchise history .. 1967 NFL season. Detroit Lions. Detroit Lions. season. List of Detroit Lions seasons. On August 5 , the Lions played the Denver Broncos in an exhibition match .. The Broncos beat the Lions by a score of 13 -- 7 and became the first AFL team to beat an NFL team .. The Lions boasted both the NFL 's Offensive and Defensive rookies of the year  : running back Mel Farr and cornerback Lem Barney .. rookies of the year. National Football League Rookie of the Year Award. Mel Farr. Mel Farr. Lem Barney. Lem Barney