In the 1730s, a Cherokee delegation enters into an agreement with British officials to return captured runaway Black slaves to their British owners.

The 1827 Constitution of the Cherokee Nation is passed, declaring “no person who is of negro or mulatto parentage, either by the father or mother side, shall be eligible to hold any office of profit, honor or trust, under this Government.” It also states only free male citizens “except negroes, and descendants of white and Indian men by negro women” are entitled to vote in elections.

Congress passes the Indian Removal Act.

The Treaty of New Echota is signed by unauthorized Cherokees, forcing the removal of all Cherokees to lands west of the Mississippi River.

Black people enslaved by Cherokees join them in the Cherokee Removal to Indian Territory.

Cherokee Nation’s 1839 Constitution is ratified, reaffirming the inferior status of residents of African heritage. This was soon followed by “An Act to Prevent Amalgamation with Colored Persons,” making intermarriage between Whites or Indians with a person of color illegal and punishable.

The American Civil War begins with the Battle of Fort Sumter near Charleston, South Carolina.

Though previously declared neutral, the Cherokee Nation makes a treaty with the Confederacy.

US President Abraham Lincoln issues the Emancipation Proclamation freeing Black slaves in Confederate states. It does not apply to sovereign nations, including Cherokee Nation.

The Cherokee National Council revokes its treaty with the Confederacy and passes an act to free slaves held by its citizens. Fines are set against owners holding slaves after June 25, 1863.

Confederate General Robert E. Lee surrenders to the Union at Appomattox, Virginia, signaling the conclusion of the Civil War. Cherokee leader Stand Watie becomes the last Confederate general to surrender on June 23, 1865.

Cherokee Nation and the US government sign the Treaty of 1866, abolishing slavery in the Cherokee Nation and guaranteeing Freedmen and their descendants “the rights of native Cherokees.”

Joseph Brown is elected to the Cherokee National Council representing Tahlequah District. He is the first known Cherokee Freedmen to be elected to a Cherokee Nation office and serves from 1875-1877.

Congress passes the Dawes General Allotment Act, authorizing the US to break up treaty-guaranteed tribal lands held in common and parcel them into allotments to give to the tribes’ citizens. Citizens must enroll with the Office of Indian Affairs to receive an allotment.

Cherokee Nation Colored High School opens at Double Springs, northwest of Tahlequah, in Cherokee Nation. Approximately 25 students were enrolled.

US President William McKinley signs the Curtis Act of 1898 into law seeking to dismantle the tribal governments by March 1906.

Oklahoma is admitted as the 46th state in the Union.

Cherokee Nation citizenship cards are issued to descendants of Cherokees listed on the Dawes Roll. Cherokee Freedmen participate in the 1971, 1975 and 1979 tribal elections.

Cherokee Nation citizens vote to approve a new constitution stating that all Cherokees listed on the Dawes Roll and their descendants are Cherokee Nation citizens.

Freedmen descendants are informed their Cherokee Nation citizenship is revoked after the tribe revises citizenship requirements to include a Certificate Degree of Indian Blood card. The Dawes Roll did not include blood degrees for Freedmen, whose descendants are turned away from the polls during the June 18, 1983, tribal election.

Rev. Roger H. Nero, who was 2 years old when he was listed as a Cherokee Freedmen on the Dawes Roll, files a federal suit with 16 other Freedmen plaintiffs against Cherokee Nation for denying both his right to vote in the 1983 tribal election and his access to tribal benefits. The case was dismissed.

The Tenth Circuit Court of Appeals affirms the dismissal of the Nero suit on grounds that the dispute was a tribal affair outside of the court’s jurisdiction.

Bernice Roger Riggs loses her suit filed in 1997 against Cherokee Nation registrar Lela Ummerteskee after she is denied Cherokee Nation citizenship based on the law limiting tribal citizenship to by-blood Cherokees.

Cherokee Nation citizens vote to remove the requirement of federal approval on future amendments to the tribe’s constitution or on a new constitution. Freedmen descendants are denied participation in the vote.

A group of Cherokee Freedmen contacts the Bureau of Indian Affairs (BIA) to protest the tribe’s May 24 general election.

Cherokee voters approve a new constitution replacing the 1975 Constitution. The BIA does not approve, but later decides not to challenge the results of the May 2003 election.

Marilyn Vann sues the US Department of Interior, Cherokee Nation and officials for both in federal court contending that the May 2003 general election was invalid because Freedmen were not allowed to vote.

Lucy Allen sues the Cherokee Nation Tribal Council, tribal registrar, and registration committee in Cherokee Nation court challenging the tribe’s authority to strip the citizenship of Dawes enrollees’ descendants, who are defined as citizens based on the 1975 Constitution.

The Cherokee Nation Judicial Appeals Tribunal rules in Allen’s favor and reverses the 2001 decision on Riggs v. Ummerteskee.

The Cherokee Nation Tribal Council votes 13-2 to allow Cherokee Nation citizens to vote on an amendment to the Constitution requiring Indian blood for Cherokee Nation citizenship.

Cherokees vote in a special election to amend the Constitution to limit citizenship to those with Indian blood.

Cherokee Nation District Judge John T. Cripps approves an application for a temporary injunction against the March 3 constitutional amendment and reinstates Freedmen as citizens.

US Rep. Diane Watson of California introduces US House Resolution 2824, which proposes to sever US relations with Cherokee Nation, including federal funding, until the tribe restores the rights of Cherokee Freedmen. The bill doesn’t pass.

Members of the Congressional Black Caucus oppose a Native American housing assistance bill unless it includes provisions preventing Cherokee Nation from receiving any funding from the bill until the tribe recognizes Freedmen as citizens.

Cherokee Nation files a lawsuit asking the US District Court for the Northern District of Oklahoma to resolve the dispute with Freedmen descendants by confirming that in 1896, Congress “unilaterally modified the Treaty of 1866 and nullified Freedmen and their descendants’ tribal citizenship.”

Cherokee Nation District Judge John T. Cripps rules in Nash v. Cherokee Nation Registrar that the descendants of Cherokee Freedmen enrolled by the Dawes Commission are entitled to tribal citizenship and the equal rights in place before the 2007 constitutional amendment.

The Cherokee Nation Supreme Court reverses and vacate Cripps’ January ruling, stating that Cherokees have the right to amend their Constitution and set citizenship requirements.

The US Department of Interior files a counterclaim against Cherokee Nation for a judgment declaring the Treaty of 1866 “provided and continues to provide” Freedmen descendants the rights and privileges of tribal citizenship. In May, the US District Court for the Northern District of Oklahoma grants the tribe’s motion to amend its complaint filed in 2009.

Oral arguments are held in the now combined Vann and Nash cases to determine whether or not the Treaty of 1866 grants citizenship rights to the Cherokees’ former slaves and their descendants.

US District Judge Thomas Hogan rules that “Cherokee Freedmen have a present right to citizenship in the Cherokee Nation that is coextensive with the rights of Native Cherokees.” Further, “the Freedmen’s right to citizenship does not exist solely under the Cherokee Nation Constitution and, therefore, cannot be extinguished solely by amending the Constitution.”

Cherokee Nation Supreme Court Chief Justice John Garrett order the tribal registrar and government to begin processing citizenship applications of eligible Freedmen. The order further states Freedmen citizens can run for tribal office.

Rodslen Brown, a Cherokee Nation citizen of Freedmen descent, is appointed as Cherokee Nation community liaison to the Cherokee Freedmen community.

Eight Cherokee Nation citizens ask the tribe’s Supreme Court to withdraw Garrett’s order and direct Hembree to appeal Hogan’s ruling.

The Cherokee Nation Supreme Court denies the motion to compel Hembree to appeal Hogan’s ruling.

Cherokee Freedmen descendant Marilyn Vann files to run for an at-large seat on the Tribal Council of the Cherokee Nation. Despite the provision in the Cherokee Nation Constitution stating candidates for public office must be a by-blood citizen to be eligible to run for office, Vann is allowed to run and appears on the general election ballot.

The Cherokee Nation Supreme Court, in the final court order in the Freedmen legal battle, orders the phrase “by blood” removed from the Cherokee Nation Constitution and other laws, rules, regulations and policies of the Nation.

US Secretary of the Interior Deb Haaland approves a new Cherokee Nation Constitution that ensures the protection of Freedmen citizenship and rights.

Appointed by Cherokee Nation Principal Chief Chuck Hoskin Jr. to Cherokee Nation’s Environmental Protection Commission, Marilyn Vann becomes the first Cherokee Nation citizen of Freedmen descent to hold a tribal governmental office.

Melissa Payne, daughter of the late Rodslen Brown and an advocate of Cherokee Freedmen recognition, fills the advisory seat of Cherokee Nation community liaison to the Cherokee Freedmen community, previously held by Brown.