| 1790 | Isaac T. Hopper Began Helping Fugitive Slaves(1790s) | During the 1790s, Isaac T. Hopper began the process of organizing the Underground Railroad, creating a network of safe spaces for fugitive slaves. |
| 1820 | Route from North Carolina to Indiana Established(1820s) | As early as the 1820s, the first long-distance route, with multiple stops, was established. This route could successfully transport slaves all the way from North Carolina to Indiana. |
| 1826 | Indiana Quakers Created Secret Rooms | By 1826, Quakers in Indiana were building hidden, secret rooms in their homes, and false bottoms in their wagons. This enabled them to safely transport and hide fugitive slaves. |
| 1833 | American Anti-Slavery Society Founded | With growing abolitionist sentiments in the North, the American Anti-Slavery Society was founded in 1833; Americans had been exposed to progressively more criticism of slavery in preceding years. |
| 1830 | David Ruggles and Isaac Hopper Created NYC Underground Railroad(1830s) | David Ruggles, with assistance from Isaac Hopper, created the New York City network of the Underground Railroad. During his lifetime, David Ruggles provided direct assistance to more than 6000 fugitive slaves, including Frederick Douglass. |
| 1841 | Establishment of the Dawn Institute | Josiah Henson established the Dawn Institute. The Dawn Institute helped former slaves adapt to their new lives, teaching trades and essential skills. |
| 1844 | Adopted Language of the Railroad | As the railways spread across America, the Underground Railroad, for the first time, took on the language of the railroad. Individuals working the Underground Railroad were called conductors, and safe places, stations. |
| 1848 | Thomas Garrett Tried and Acquitted | In 1848, Thomas Garrett, a key figure on the Underground Railroad, was tried for his involvement in assisting fugitive slaves and acquitted. |
| 1850 | Fugitive Slave Act Passed | The Fugitive Slave Act was passed in 1848. This required all individuals, including those in free states, to help in the capture and return of fugitive slaves. |
| 1850 | Harriet Tubman Escaped | Harriet Tubman escaped slavery in 1850. She went onto become one of the most important conductors on the Underground Railroad, not only assisting individuals, but also going into the South to bring fugitive slaves to the North. |
| 1853 | Support for Underground Railroad Grew | By 1853, support for the Underground Railroad grew rapidly. More people were willing to offer assistance to fugitive slaves, regardless of the law. |
| 1861 | Civil War Began | The Civil War began with the attack on Fort Sumter in 1861. While the North fought to preserve the Union, slavery soon fell. |
| 1861 | Emancipation(1861 to 1865) | The violence of the Civil War provided opportunities for freedom and escape, even before the Emancipation Proclamation in 1864. |
