Civil War Lecture Discussion Timeline By rhiwilson 1861 1st Bull Run 1861 Lincoln picks Henry Halleck to be General in Chief 1861 McClellan wins a series of small victories 1861 Winfield Scott resigns 1861 McClellan disrespects Lincoln by making him wait outside before his meeting. 1861 Jefferson Davis is elected Period: 1861 to 1861 Union army grows drastically, from 50,000 to 168,000 1862 Lincoln invites McClellan to the White House 1862 Robert E. Lee elevated as Commander of the Confederate Army in Northern Virginia 1863 Meade is the overall commander of the North 1864 Grant replaced Halleck