Apr419241999 - 1900United States of AmericaThe first U. S. Public Health Service Standard Milk Code was published. Category: 1999 - 1900, United States of America4. 4. 1924Post navigationPreviousPrevious post:1931 – First issue of the journal, The SanitarianNextNext post:1923 – Ustanovljen je Higienski zavod v Ljubljani