April 15th is the 150th anniversary of Abraham Lincoln’s assassination.
I have a huge list of resources about Lincoln on The Best Resources About Presidents’ Day.
Here are some specific materials about his assassination:
Killing Lincoln is an interactive from National Geographic.
Death Of A President is a Smithsonian interactive.
Booth: The Final Days is a History Channel interactive.
Memories of Abraham Lincoln is a photo gallery from The Boston Globe.
Here’s a History Channel video: