January 06, 1841
WASHINGTON, January 6, 1841.
The President of the United States to _______, Senator for the State of _______:
Certain matters touching the public good requiring that the Senate of the United States should be convened on Thursday, the 4th day of March next, you are desired to attend at the Senate Chamber, in the city of Washington, on that day, then and there to receive and deliberate on such communications as shall be made to you.
M. VAN BUREN.
Martin van Buren, Proclamation—Convening an Extra Session of the United States Senate Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/201875