The Scientific Legion of Honor was a decoration issued in the 23rd century.
This medal was listed in the commendations section of Christopher Pike's personnel file, along with other awards he had earned during his lifetime prior to 2257. (DIS: "Brother")
During her time on the USS Enterprise, Una Chin-Riley was awarded this decoration. It, along with other awards, was listed in her personnel file, in the section "USS Enterprise - NCC-1701 Medals and Decorations". (SNW: "Ad Astra per Aspera")