Love Philly? So do we. Let’s be friends. Sign up for the Billy Penn newsletter today. After enjoying their first Philly cheesesteak at the Reading Terminal Market on a Saturday, Jim and Beata Hope of Washington, D.C. went to their destination on this trip to the city, a nondescript house at 301 Pine Street. In 1797-98, it was the home of Thaddeus Kosciuszko, a Polish soldier and engineer who assisted George Washington and other generals during …