“boss” William tweed oversaw the corruption and political scandals in which political machine ?

William Magear Tweed (April 3, 1823 – April 12, 1878), often erroneously referred to as "William Marcy Tweed" (see below),[1] and widely known as "Boss" Tweed, was an American politician most notable for being the "boss" of Tammany Hall, the Democratic Party political machine that played a major role in the politics of 19th-century New York City and State

the answer is: the sesquicentennial of the american civil war is an occasion to consider the legacy of that great conflict. this legacy is our inheritance, and despite many indelible features, we continue to negotiate the resolution of that conflict. the civil war was fought over slavery, but not always on behalf of slaves