Who is the 20th president of the United States?

American politician, mathematician, American Republican, 20th president. Born in Ohio during the Civil War, he joined the northern army and fought against the southern slave army, holding the rank of major general. 188 1 was elected president, and his term of office was in the transitional period from political party sharing system to civilian system. He was assassinated by an unsuccessful official six months after he took office. His contribution to mathematics is mainly to prove the new results of Pythagorean theorem. He is also the only president in American history who was born as a mathematician. His first lady is Lydia Rudolph.

2 eugene garfield (1925 ~)

American information scientist. 1925 September 16 was born in new york. 1949 graduated from the chemistry department of Columbia University, 1954 obtained the master's degree in library science, 196 1 obtained the doctor's degree from the University of Pennsylvania. 1955 put forward the idea of compiling citation index, and then carried out small-scale experiments for several years. The Scientific Information Service (ISI) was established in 1960s, and the Scientific Citation Index was compiled and published in 1963, which became an important tool for literature retrieval and citation analysis and made important contributions to the development of bibliometrics and Scientology. Since 1975, it has successively won the Celebrity Award of American Information Industry Association, the Best Works Award and Honorary Award of American Information Society, and the Herman Shawnick Award of American Chemical Society. He is the author of "Informationists' Papers and Citations Index: Theory and Application in Science, Technology and Humanities".

John garfield (19 13)

Jacob Julius Garfinkle was born in a poor Jewish immigrant family in eastern new york. When he was seven years old, his mother died and his father brought him up alone. However, he still had to spend his adolescence in a reformatory, where he became interested in boxing and drama. After that, he took part in the Quanzhou Middle School Students Debate Competition, and finally won. This victory brought him a scholarship, which he used to study at Maria Ouspenskaya Theatre School.

1932, john garfield joined the Civic Theatre and began to perform on stage. 1933, he appeared in the musical Footlight Parade. After that, he entered the group theater in new york, and his performance in Awakening and Singing was recognized by people. From 65438 to 0936, john garfield has become the leading role in Broadway plays. 1938, a wave of dancers transformed into film actors appeared on Broadway. At this time, he also entered Hollywood and signed a contract with Warner Corporation. His performance in the first film "Four Daughters" was unanimously affirmed, and he was not only nominated for Best Supporting Actor at the Oscar, but also won the Best Acting Award from the National Film Board of the United States. Moreover, his angry expression, cynical tone and image of never giving up after repeated setbacks have gradually made him a representative of Hollywood Iron Man.

1947 Co-starred in "The Silent Melody" with joan crawford, and started to set up an independent production company. He signed free shooting contracts with several production companies and also provided support for Hollywood left-wing artists. In the same year, he starred in "Body and Soul" and won the Oscar nomination for best actor and the Prospect magazine award for best actor and cinematography. However, in the early 1950s, john garfield was investigated by the Commission for Investigation of Non-American Activities, blacklisted and persecuted for refusing to list the names wanted by the Commission, and died of coronary artery thrombosis on May 1952. His funeral was second only to Hollywood lover rudolph valentino. His other major films include The Fourth Lady, Hatred of the Fisherman, robotech, Target Tokyo, Guadalcanal Anti-Japanese War, Bitch Complain, Witness and so on. In addition, his daughter Julie Garfield began to be active on the screen in the late 1960s.

Garfield, the cartoon image written by American cartoonist jim davis.

Birthday: June 1978+09.

Birth weight: 2.5 kg

Current weight: equivalent to an aircraft carrier.

Main features: 14 fingers, 6 beards, 1 pink nose.

Nickname: Amoeba Man

Favorite sport: taking a nap.

Best friend: mirror

Favorite food: spaghetti

The most annoying day: Monday

Hobbies: eating and sleeping.

Favorite dog: hot dog

Garfield, born in June 1978, has sold130,000 books since its publication, with 26 million readers worldwide. Garfield stands out from the crowd because of its "bad habits", such as ironically taking a nap, drinking coffee, munching lasagna, being flat at the sight of spiders and running after the postman. Compared with Tom in Tom and Jerry, Garfield jokes and works hard, but his "carrier-like figure and overbearing style" make him unable to be defined as an "idol" in any case. However, it is precisely the more "humanized" characteristics that make it famous. As Garfield's "father" cartoonist jim davis commented: "People love Garfield because people want to say what it says and do what it does, but they can't."