On March 31 in the year . . . .
1880 – The first electric street lights installed by a municipality were turned on in Wabash, IN.
1889 – The Eiffel Tower opened today.
1918 – Daylight saving time went into effect throughout the United States for the first time.
1951 – The first commercial US made computer, UNIVAC I, was delivered to the United States Census Bureau.