BIG MAC DAY! Celebrating mcdonaldsofthreerivers Big Mac Day on the birthday of the creator, Jim Delligatti! 🍔 Jim started the 𝕭𝖎𝖌 𝕸𝖆𝖈 at his McDonald’s in Uniontown, PA then moved it to three more of his McDonald’s restaurants in Pittsburgh, PA! Now go enjoy a 𝓑𝓲𝓰 𝓜𝓪𝓬! #BigMac #InternationalBigMacDay #BigMacDay #McDonalds #Pittsburgh #Pittsburghfood #foodie #BigMacBurger #burger #jimdelligatti #ad