Recognition of food safety issues and attempts to address them began after Upton Sinclair published the novel "The Jungle" in 1906. It was a fictional account of the lives of immigrants in the industrial cities in the US around this time. Sinclair spent nine months undercover as an employee in a Chicago meat plant doing research. The book inadvertently raised public concern about food safety and sanatization of the Chicago meat packing industry. Upon reading "The Jungle", President Theodore Roosevelt called on Congress to pass the Pure Food and Drug Act and the Federal Meat Inspection Act (FMIA), which passed in 1906 and 1907 respectively. These laws were the first to address food safety in the US Misbranding and adulteration were defined as they concerned food additives and truth in labeling. Food preservatives such as formaldehyde and borax used to disguise unsanitary production processes were also addressed.