along with other historians and along with scott hardwick. i strongly supported the idea that the main concepts of understanding the importance of gettysburg is not the high watermark of the confederacy it's the new birth of freedom. that lincoln mentioned in the gettysburg address. i think that's what i try to deal with when talking about's the high watermark, pickett's charge, the meaning of gettysburg. there clearly was a high watermark for the confederacy. that's still an important part of understanding the battle. especially as military dimensions. in a deeper sense, it was lincoln who defined the real meaning of gettysburg. the new birth of freedom. peter: i'm going to take that new birth of freedom and lead into my final question. to criticism of your work by a historian. to southern historian has dabbled in civil war history. this is from a piece about the civil war. but even i served. he's afraid to ken burns as well as mcpherson. anti-slavery, progress, war and national identity intertwined at the same time of the civil war so that