Answer the question at the end by quoting:

Abbot Howard Hoffman (November 30, 1936 - April 12, 1989) was an American political and social activist, anarchist, and revolutionary who co-founded the Youth International Party ("Yippies"). Hoffman was arrested and tried for conspiracy and inciting to riot as a result of his role in protests that led to violent confrontations with police during the 1968 Democratic National Convention, along with Jerry Rubin, David Dellinger, Tom Hayden, Rennie Davis, John Froines, Lee Weiner, and Bobby Seale. The group was known collectively as the "Chicago Eight"; when Seale's prosecution was separated from the others, they became known as the Chicago Seven. While the defendants were initially convicted of intent to incite a riot, the verdicts were overturned on appeal.
Hoffman was arrested and tried for conspiracy and inciting to riot as a result of his role in anti-Vietnam War protests, which were met by a violent police response during the 1968 Democratic National Convention in Chicago. He was among the group that came to be known as the Chicago Seven (originally known as the Chicago Eight), which included fellow Yippie Jerry Rubin, David Dellinger, Rennie Davis, John Froines, Lee Weiner, future California state senator Tom Hayden and Black Panther Party co-founder Bobby Seale (before his trial was severed from the others). Presided over by Judge Julius Hoffman (no relation to Hoffman, about which he joked throughout the trial), Abbie Hoffman's courtroom antics frequently grabbed the headlines; one day, defendants Hoffman and Rubin appeared in court dressed in judicial robes, while on another day, Hoffman was sworn in as a witness with his hand giving the finger. Judge Hoffman became the favorite courtroom target of the Chicago Seven defendants, who frequently would insult the judge to his face. Abbie Hoffman told Judge Hoffman "you are a 'shande fur de Goyim' [disgrace in front of the gentiles]. You would have served Hitler better." He later added that "your idea of justice is the only obscenity in the room." Both Davis and Rubin told the Judge "this court is bullshit." When Hoffman was asked in what state he resided, he replied the "state of mind of my brothers and sisters". Other celebrities were called as "cultural witnesses" including Allen Ginsberg, Phil Ochs, Arlo Guthrie, Norman Mailer and others. Hoffman closed the trial with a speech in which he quoted Abraham Lincoln, making the claim that the president himself, if alive today, would also be arrested in Chicago's Lincoln Park. On February 18, 1970, Hoffman and four of the other defendants (Rubin, Dellinger, Davis, and Hayden) were found guilty of intent to incite a riot while crossing state lines. All seven defendants were found not guilty of conspiracy. At sentencing, Hoffman suggested the judge try LSD and offered to set him up with "a dealer he knew in Florida" (the judge was known to be headed to Florida for a post-trial vacation). Each of the five was sentenced to five years in prison and a $5,000 fine. However, all convictions were subsequently overturned by the Seventh Circuit Court of Appeals. The Walker Commission later found that in fact it had been a "police riot".

Where any others being tried with him?

He was among the group that came to be known as the Chicago Seven (originally known as the Chicago Eight), which included fellow Yippie Jerry Rubin, David Dellinger, Rennie Davis,

Answer the question at the end by quoting:

Henry Gustav Molaison (February 26, 1926 - December 2, 2008), known widely as H.M., was an American memory disorder patient who had a bilateral medial temporal lobectomy to surgically resect the anterior two thirds of his hippocampi, parahippocampal cortices, entorhinal cortices, piriform cortices, and amygdalae in an attempt to cure his epilepsy. Although the surgery was partially successful in controlling his epilepsy, a severe side effect was that he became unable to form new memories. H.M. was widely studied from late 1957 until his death in 2008. His case played an important role in the development of theories that explain the link between brain function and memory, and in the development of cognitive neuropsychology, a branch of psychology that aims to understand how the structure and function of the brain relates to specific psychological processes.
The study of Molaison revolutionized the understanding of the organization of human memory. It has provided broad evidence for the rejection of old theories and the formation of new theories on human memory, in particular about its processes and the underlying neural structures (cf. Kolb & Whishaw, 1996). In the following, some of the major insights are outlined. Molaison's brain was the subject of an anatomical study funded by the Dana Foundation and the National Science Foundation. The aim of the project, headed by Jacopo Annese, of The Brain Observatory at UC San Diego, was to provide a complete microscopic survey of the entire brain to reveal the neurological basis of Molaison's historical memory impairment at cellular resolution. On December 4, 2009, Annese's group acquired 2401 brain slices, with only two damaged slices and 16 potentially problematic slices. The digital 3D reconstruction of his brain was finished at the beginning of 2014. The results of the study were published in Nature Communications for January 2014. The researchers found, to their surprise, that half of H.M.'s hippocampus had survived the 1953 surgery, which has deep implications on past and future interpretations of H.M.'s neurobehavioral profile and of the previous literature describing H.M. as a 'pure' hippocampus lesion patient. Additionally, a previously unexpected discrete lesion was discovered in the prefrontal cortex. These findings suggest revisiting raw data from behavioral testing. A three-dimensional virtual model of the brain allowed the dynamics of the surgery to be reconstructed; it was found that the brain damage above the left orbit could have been created by Dr. Scoville when he lifted the frontal lobe to reach into the medial temporal lobes. The article also describes the general neuropathological state of the brain via multiple imaging modalities. As H.M. was 82 when he died, his brain had aged considerably. Several pathological features were discovered, some severe, which had contributed to his cognitive decline. The digital atlas of HM's brain was made publicly available on the Internet free of charge; its "permanence on the web relies on contributions from users".

What was his major contribution to science?
The study of Molaison revolutionized the understanding of the organization of human memory.