Fun facts that matter I

Dates Northern States formally abolished slavery:

CT: 1848

DE: 1865

IL: 1848

IN: 1820

IA: 1838-1840

KY: 1865

MD: 1865

MA: 1865

MO: 1865

NH: 1857

NJ: 1865

NY: 1827

OH: 1802

PA: 1780

RI: 1842

WV: 1865

Entered union as free State / Dates of abolition in territory:

ME: 1820

MI: 1835

MN: 1858

OR: 1844

VT: 1777

WI: 1848

Source: Personal research.