What is Juneteenth and how are people commemorating it this year?

Juneteenth, a portmanteau of June and 19th, also is known as Emancipation Day.It commemorates the day in 1865, after the Confederate states surrendered to end the Civil War, when a Union general arrived in Texas to inform the last group of enslaved African Americans of their freedom under President Abraham Lincoln's 1863 Emancipation Proclamation.