The Philadelphia Athletics and the Washington Senators play the first home Opening Day night game in American League history. Washington wins, 6 – 1, behind the solid pitching of 40-year-old Connie Marrero as his batterymate Mickey Grasso hits a home run.

On April 17, 1951 – – The Philadelphia Athletics and the Washington Senators play the first home Opening Day night game in American League history. Washington wins, 6 – 1, behind the solid pitching of 40-year-old Connie Marrero as his batterymate Mickey Grasso hits a home run.

 

Source 

Baseball Reference April 17