Abraham Lincoln (Excalbian)
In 2269, this image of Abraham Lincoln was created by the Excalbians in a  devised to better understand the concepts of good and evil, with Lincoln, , James T. Kirk, and Spock representing "good". It was Spock, who later observed that the Excalbian created Lincoln was created, and registered as humanoid, despite being a product of matter-energy conversion, whereby other Excalbians themselves were used as the source matter.

Lincoln was a personal hero of Kirk, and this fact was the reason why the Excalbians created this image. The image of Lincoln first appeared sitting in a chair, floating in space above Excalbia. ()

The image of Lincoln sitting in his chair in front of the Enterprise was seen by the  "Ephraim" as she pursued the Enterprise, on which she had laid her eggs. ()

Though "Lincoln" was obviously an illusion created from Kirk's mind and the Enterprise memory banks, Kirk insisted on greeting Lincoln with full Presidential honors upon his boarding the Enterprise. 

In the initial conflict forced by the Excalbians, the middle-aged simulacrum of Lincoln was able to hold his own against the forces of "evil", forcing  and  into retreat. The simulated Lincoln recognized a kindred spirit in the  of the Vulcan patriarch, Surak, and sacrificed his "life" in an effort to save his counterpart when he was killed by a spear. 

After witnessing Lincoln's "second" death, Kirk felt he understood something of what Earth had to endure before achieving "final peace". ()

This "Lincoln's" death in the plot was evidently a permanent ending for the Excalbian, and the skeletal remains, complete with spear and stovepipe hat, were later acquired and placed in a diorama, alongside the bones of an Excalbian in its natural form, where they were displayed in the ossuary room of noted  Kerner Hauze. 

During the ' mission to catalog Hauze's ship, the away team came under attack by hovering vacuum cleaners, one of Hauze's automated defenses, the away team build a wall of bones. After a few of the vacuums broke through the barrier, Beckett Mariner shoved Lincoln's skull into the pile to fill the entry hole. ()

Appendices

Appearances

Background information 
In "The Savage Curtain", Lincoln was portrayed by actor Lee Bergere. 

Early planning had Mark Lenard in the role. He was eager to take the part, inspired by having played two well-received roles on Star Trek, but he ultimately couldn't accept it due to prior commitments to another TV series. "The Lincoln segment came up about Christmas time when we had a slight hiatus, and I thought I could work it in," he recalled, "But it turned out we just couldn't work it in. I think we went back to work on the other series too soon, and instead of having the six or seven days I would have needed to do the role, I only had three or four days." ( #42, , p. 24)

Apocrypha 
The Excalbian Lincoln returns as part of the tenth anniversary of Star Trek Online. In the two-part mission "The Measure of Morality", the player character is brought to Excalbia, and Lincoln helps Yarnek oversee new "trials" to determine good and evil. When the trials go awry, Lincoln joins the player and Seven of Nine in protecting Yarnek from attackers. Following the conclusion of the trials, Lincoln volunteers to act as an Excalbian ambassador to the Alliance.

External links 
 
 

Excalbians