May 15, 1900 (Tuesday)
- Montana's William A. Clark resigned from the United States Senate while that body debated his expulsion. After Clark's name was stricken from the Senate roster, the news came that Montana Lieutenant Governor Spriggs, acting in the absence of Governor Smith, had re-appointed Clark to fill the vacancy When Governor Smith returned, Martin Maginnis was appointed on May 18.
- Fish fell from the sky during a late afternoon thunderstorm in Providence, Rhode Island. Richard H. Tingley, a witness, reported that "streets and yards for several blocks were alive with squirming little perch and bullspouts". The fish were heaviest at Olneyville.
Read more about this topic: May 1900