The Pure Food & Drug Act was passed in June 1906 following this Upton Sinclair meatpacking industry expose
..... assured Sinclair that he would take action against the meat packing industry:
... [DOC] [TLE] 1906: Upton Sinclair - The Capital Century [PAR] Upton Sinclair was a desperately poor, young socialisthoping to remake the 
world when ... about the meat-packing industry, and dropped it on an astonished 
nation