Final answer:
Milton S. Hershey is credited with making milk chocolate widely available, and Hershey, Pennsylvania, is named after him. He started mass-producing milk chocolate in the early 1900s, making chocolate more accessible to a broader public.
Step-by-step explanation:
The individual who made milk chocolate available to the world and has a Pennsylvania city named after him is Milton S. Hershey. Hershey began producing milk chocolate in the early 1900s, which was previously a luxury that only the wealthy could afford. He was able to mass-produce milk chocolate, thereby making it more accessible and affordable for the general public. The city named after him is Hershey, Pennsylvania, where he built his chocolate factory and the 'sweetest place on Earth' home to Hershey's Chocolate World.Before Hershey's innovation, chocolate was primarily enjoyed in Europe as a dark chocolate concoction. The cacao bean, from which chocolate is made, has been in use for thousands of years, originally harvested by ancient Meso-American cultures. However, it was Hershey's introduction of milk chocolate on a mass scale that fundamentally changed the way chocolate was consumed and popularized it around the world.In conclusion, Milton S. Hershey is the person responsible for making milk chocolate widely available, and the city that bears his name is a testament to his legacy in the chocolate industry.