Japan held a nationwide election to the House of Representatives, the more powerful lower house of the National Diet, on February 18, 1990. House of Representatives is a name used for legislative bodies in many countries. ... A lower house is one of two chambers of a bicameral legislature, the other chamber being the upper house. ... This article is about the Japanese legislature. ... February 18 is the 49th day of the year in the Gregorian Calendar. ... This article is about the year. ...