The walk, or “marŝi,” will begin at the site where, before the war, the house of Ludwik Zamenhof, creator of the Esperanto language, once stood. On our way to the back streets of the historic Nalewki, where we will listen for echoes of the once-thriving artisan street, we will greet the Ukrainian House, which has been operating on Zamenhofa Street for nearly a year. In the courtyards of Muranów, we will search for traces of the…