Statistics in the news

Last Friday was the 150th anniversary of the end of slavery across the US. To commemorate the day, known as Juneteenth, CNN has put together a great list of the important numbers and facts. Here are a few of them:

155 - Years since Maj. Gen. Gordon Granger (Union Army) first read the proclamation, General Orders, No. 3, in Galveston, Texas, notifying slaves of their emancipation, on June 19, 1865.

January 1, 1863 - Date President Abraham Lincoln issued the final Emancipation Proclamation, freeing those enslaved.

901 - Days in between the issuance of the Emancipation Proclamation and General Orders, No. 3.

13th - Amendment to the US Constitution that abolished slavery.

3,953,760 - Estimated number of slaves in the United States in 1860.

30.2 - Percentage of the population of Texas comprised of slaves, or "bondsmen," in 1860.

500,000 - Estimated number of free blacks in the United States in 1860. According to Encyclopedia Britannica, about half were in the North and half were in the South.

15 - States where it was legal to have slaves before the Civil War: Alabama, Arkansas, Delaware, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, Missouri, North Carolina, South Carolina, Tennessee, Texas and Virginia.

47 - States with laws or resolutions commemorating Juneteenth.

January 1, 1980 - Juneteenth became a state holiday in Texas, although it had been celebrated informally since 1865.