Fifty years after he created the sandwich that launched America's top chicken restaurant chain, Georgia businessman Samuel Truett Cathy died early Monday. Cathy's Chick-fil-A has now grown to $5 billion in annual sales, and its stores still close on Sundays, reflecting its founder's religious beliefs. Cathy's death was announced by Chick-fil-A, which said, "He died peacefully at home, surrounded by loved ones." Last year, Chick-fil-A surpassed KFC with the most sales for a chicken restaurant chain in the U.S., on the strength of recent rapid growth. The company reached $1 billion in sales in 2000. After hitting $3 billion in...