2014 Event Ford Motor Company begins using aluminum instead of steel in the body of its most popular truck, the F-150; the change has cost the company time and money in conversion of production lines but will make the vehicle more fuel efficient 1994 Event Cleveland Browns is 1st team in NFL to score a 2-point conversion 1975 Event Congress passes Metric Conversion Act 1961 Event 1st practical sea water conversion plant - Freeport, Texas 1958 Event NCAA adds 2 point conversion to football scoring 1906 Event George B. Shaws "Captain Brassbound's Conversion," premieres in London 1428 Event King Alfonso V, orders Sicily's Jews to attend conversion sermons