Statutory values for the acre were enacted in LOCATION@1 by acts of : PERSON@1 I , PERSON@2 , PERSON@3 , PERSON@4 and LOCATION@2 -- the MISC@1 Weights and Measures Act of NUMBER@1 defined it as containing NUMBER@2 square yards .

Therefore , PERSON@1 I , PERSON@2 , PERSON@3 and George IV passed laws fixing its size .
