this weekend on "history book shelf," loosy barber, it covers the history of marches on washington, d.c. beginning with the 1894 march calling for public works programs for the unemployed and continues through the 1963 civil rights march and aebt vietnam war protests. >> thank you steve. thank you all for coming here. i'm very glad to be here at catholic, where my good friend john sweet has been teaching for many years and i have learned much about him and much about this institution so it's interesting to finally see the place since i've only heard about it from the distance. of course coming to washington is not so unfamiliar for me. i have did many years of research, obviously, in connection with this book. but i am also, someone was asking me just before, about whether or not i had washington ties. and i am someone who came from a family that is tide to washington on my father's side, both his parents came from washington and lived here. and that also ties into a question that i think is very pertinent to, and is asked all the time these days, is why write a book on the history of m