Final answer:
The influential articles that helped pave the way for the 1906 Pure Food and Drug Act and Meat Inspection Act appeared in 'Collier's' magazine, contributing to significant advances in food and drug safety regulations.
Step-by-step explanation:
The articles that played a significant part in the passage of the Pure Food and Drug Act and the Meat Inspection Act in 1906 appeared in 'Collier's' magazine. These laws were largely a response to the public outcry after Upton Sinclair's exposé on the meatpacking industry, depicted in his novel 'The Jungle'. The Pure Food and Drug Act created the Food and Drug Administration (FDA) and addressed issues about sanitation, food, and medicine safety, including requiring labels that enumerated drug ingredients and establishing federal standards for meatpackers. Meanwhile, the Meat Inspection Act mandated inspection prior to slaughter and set cleanliness standards for meat processors. These acts represented significant progress in federal regulatory policies and reflected the influence of investigative journalism on policy making.