TIL the US National Institute of Standards and Technology (NIST) considers the kg, and not the gram, as the base SI unit of mass.

https://www.nist.gov/pml/owm/metric-si/si-units
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1g8q1y1/til_the_us_national_institute_of_standards_and/