Ephraim Katzir (; – 30 May 2009) was an Israeli

biophysicist Biophysics is an interdisciplinary science that applies approaches and methods traditionally used in physics to study biological phenomena. Biophysics covers all scales of biological organization, from molecular to organismic and populations ...

and Labor Party politician. He was the

president of Israel The president of the State of Israel (, or ) is the head of state of Israel. The president is mostly, though not entirely, ceremonial; actual executive power is vested in the Cabinet of Israel, cabinet led by the Prime Minister of Israel, pr ...

from 1973 until 1978.

Biography

Efraim Katchalski (later Katzir) was the son of Yudel-Gersh (Yehuda) and Tzilya Katchalski,Запис про народження 3 травня (ст. ст.) 1916 року Ефраїма Качальського в метричній книзі київського рабинату
// ЦДІАК України. Ф. 1164. Оп. 1. Спр. 158 (колишній номер — 514). Арк. 337зв.–338. ( ru) ( uk) in

Kiev Kyiv, also Kiev, is the capital and most populous List of cities in Ukraine, city of Ukraine. Located in the north-central part of the country, it straddles both sides of the Dnieper, Dnieper River. As of 1 January 2022, its population was 2, ...

, in the

Russian Empire The Russian Empire was an empire that spanned most of northern Eurasia from its establishment in November 1721 until the proclamation of the Russian Republic in September 1917. At its height in the late 19th century, it covered about , roughl ...

(today in

Ukraine Ukraine is a country in Eastern Europe. It is the List of European countries by area, second-largest country in Europe after Russia, which Russia–Ukraine border, borders it to the east and northeast. Ukraine also borders Belarus to the nor ...

). In 1925 (several publications cite 1922), he

immigrated Immigration is the international movement of people to a destination country of which they are not usual residents or where they do not possess nationality in order to settle as permanent residents. Commuters, tourists, and other short- ...

Mandatory Palestine Mandatory Palestine was a British Empire, British geopolitical entity that existed between 1920 and 1948 in the Palestine (region), region of Palestine, and after 1922, under the terms of the League of Nations's Mandate for Palestine. After ...

with his family and settled in

Jerusalem Jerusalem is a city in the Southern Levant, on a plateau in the Judaean Mountains between the Mediterranean Sea, Mediterranean and the Dead Sea. It is one of the List of oldest continuously inhabited cities, oldest cities in the world, and ...

. In 1932, he graduated from Gymnasia Rehavia. A fellow classmate, Shulamit Laskov, remembers him as the "shining star" of the grade level. He was “an especially tall young man, a little pudgy, whose goodness of heart was splashed across his smiling face.” He excelled in all areas, “even in drawing and in gymnastics, where he was no slouch. He was the first in the class in arithmetic, and later on in mathematics. No one came close to him.” Like his elder brother, Aharon, Katzir was interested in science. He studied botany, zoology, chemistry and bacteriology at the

Hebrew University of Jerusalem The Hebrew University of Jerusalem (HUJI; ) is an Israeli public university, public research university based in Jerusalem. Co-founded by Albert Einstein and Chaim Weizmann in July 1918, the public university officially opened on 1 April 1925. ...

. In 1938 he received an MSc, and in 1941 he received a PhD degree. In 1939, he graduated from the first Haganah officers' course, and became commander of the student unit in the field forces (Hish). He and his brother worked on the development of new methods of warfare. In late 1947, after the outbreak of the

1948 Palestine war The 1948 Palestine war was fought in the territory of what had been, at the start of the war, British-ruled Mandatory Palestine. During the war, the British withdrew from Palestine, Zionist forces conquered territory and established the Stat ...

, and in anticipation of the War for Israel’s Independence, Katzir met the biochemist David Rittenberg, then working at

Columbia University Columbia University in the City of New York, commonly referred to as Columbia University, is a Private university, private Ivy League research university in New York City. Established in 1754 as King's College on the grounds of Trinity Churc ...

, stating: ‘I need germs and poisons for the mpending/ongoing Israeliwar of independence,’ Rittenberg referred the matter to

Chaim Weizmann Chaim Azriel Weizmann ( ; 27 November 1874 – 9 November 1952) was a Russian-born Israeli statesman, biochemist, and Zionist leader who served as president of the World Zionist Organization, Zionist Organization and later as the first pre ...

. Weizmann initially dismissed the request, branding Katzir a ‘savage’ and requested his dismissal from the Sieff Scientific Institute in

Rehovot Rehovot (, / ) is a city in the Central District (Israel), Central District of Israel, about south of Tel Aviv. In it had a population of . Etymology Israel Belkind, founder of the Bilu (movement), Bilu movement, proposed the name "Rehovot ...

, but weeks later he relented, and his dismissal was rescinded. Shortly afterwards, in March 1948, his brother Aharon, who decades later was one of the victims of the Lod Airport Massacre, was appointed director of a research unit, HEMED, in

involving biological warfare. A decision to use such material against Palestinians was then taken in early April. In May Ben-Gurion appointed Ephraim to replace his brother as director of the HEMED research unit, given his success abroad in procuring biological warfare materials and equipment to produce them. Katzir was married to Nina (née Gottlieb), born in

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...

, who died in 1986. As an English teacher, Nina developed a unique method for teaching language. As the president's wife, she introduced the custom of inviting the authors of children's books and their young readers to the President's Residence. She established the Nurit Katzir Jerusalem Theater Center in 1978 in memory of their deceased daughter, Nurit, who died from accidental carbon monoxide exposure. Another daughter, Irit, killed herself. They had a son, Meir, and three grandchildren. Katzir died on 30 May 2009 at his home in Rehovot. Israel's fourth president Ephraim Katzir dies at 93
Haaretz, 31 May 2009

Scientific career

After continuing his studies at the

Polytechnic Institute of Brooklyn The New York University Tandon School of Engineering (commonly referred to as Tandon) is the engineering and applied sciences school of New York University. Tandon is the second oldest private engineering and technology school in the United St ...

and

Harvard University Harvard University is a Private university, private Ivy League research university in Cambridge, Massachusetts, United States. Founded in 1636 and named for its first benefactor, the History of the Puritans in North America, Puritan clergyma ...

, he returned to Israel and became head of the Department of Biophysics at the

Weizmann Institute of Science The Weizmann Institute of Science ( ''Machon Weizmann LeMada'') is a Public university, public research university in Rehovot, Israel, established in 1934, fourteen years before the State of Israel was founded. Unlike other List of Israeli uni ...

in Rehovot, an institution he helped to found. In 1966–1968, Katzir was Chief Scientist of the

Israel Defense Forces The Israel Defense Forces (IDF; , ), alternatively referred to by the Hebrew-language acronym (), is the national military of the State of Israel. It consists of three service branches: the Israeli Ground Forces, the Israeli Air Force, and ...

. His initial research centered on simple synthetic protein models, but he also developed a method for binding enzymes, which helped lay the groundwork for what is now called

enzyme engineering Protein engineering is the process of developing useful or valuable protein, proteins through the design and production of unnatural peptide, polypeptides, often by altering amino acid sequences found in nature. It is a young discipline, with much ...

Presidency

In 1973,

Golda Meir Golda Meir (; 3 May 1898 – 8 December 1978) was the prime minister of Israel, serving from 1969 to 1974. She was Israel's first and only female head of government. Born into a Jewish family in Kyiv, Kiev, Russian Empire (present-day Ukraine) ...

contacted Katzir at

, asking him to accept the presidency. He hebraicized his family name to Katzir, which means 'harvest'. On 10 March 1973, Katzir was elected by the

Knesset The Knesset ( , ) is the Unicameralism, unicameral legislature of Israel. The Knesset passes all laws, elects the President of Israel, president and Prime Minister of Israel, prime minister, approves the Cabinet of Israel, cabinet, and supe ...

to serve as the fourth President of Israel. He received 66 votes to 41 cast in favour of his opponent Ephraim Urbach and he assumed office on 24 May 1973. During his appointment, UN approved resolution 3379 which condemned "Zionism as Racism". He was involved in the dispute between Mexico (where the resolution was initially promoted during the

World Conference on Women, 1975 World Conference on Women, 1975 was held between 19 June and 2 July 1975 in Mexico City, Mexico. It was the first international conference held by the United Nations to focus solely on women's issues and marked a turning point in policy directives ...

) and the US Jewish community because of a touristic boycott directed from the latter to that country. In November 1977, he hosted President

Anwar Sadat Muhammad Anwar es-Sadat (25 December 1918 – 6 October 1981) was an Egyptian politician and military officer who served as the third president of Egypt, from 15 October 1970 until Assassination of Anwar Sadat, his assassination by fundame ...

Egypt Egypt ( , ), officially the Arab Republic of Egypt, is a country spanning the Northeast Africa, northeast corner of Africa and Western Asia, southwest corner of Asia via the Sinai Peninsula. It is bordered by the Mediterranean Sea to northe ...

in the first ever official visit of an

Arab Arabs (, , ; , , ) are an ethnic group mainly inhabiting the Arab world in West Asia and North Africa. A significant Arab diaspora is present in various parts of the world. Arabs have been in the Fertile Crescent for thousands of years ...

head of state. In 1978, he declined to stand for a second term due to his wife's illness, and was succeeded by

Yitzhak Navon Yitzhak Rachamim Navon (; 9 April 1921 – 6 November 2015) was an Israeli politician, diplomat, playwright, and author. He served as the president of Israel between 1978 and 1983 as a member of the centre-left Alignment party. He was the f ...

. After stepping down as President, he returned to his scientific work.

Awards and recognition

* In 1959, Katzir was awarded the

Israel Prize The Israel Prize (; ''pras israél'') is an award bestowed by the State of Israel, and regarded as the state's highest cultural honor. History Prior to the Israel Prize, the most significant award in the arts was the Dizengoff Prize and in Israel ...

in life sciences. * In 1966, he was elected to the

American Philosophical Society The American Philosophical Society (APS) is an American scholarly organization and learned society founded in 1743 in Philadelphia that promotes knowledge in the humanities and natural sciences through research, professional meetings, publicat ...

* In 1966, he was elected to the United States

National Academy of Sciences The National Academy of Sciences (NAS) is a United States nonprofit, NGO, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the ...

* In 1972, he was awarded the

Sir Hans Krebs Medal The Sir Hans Krebs Lecture and Medal is awarded annually by the Federation of European Biochemical Societies (FEBS) for outstanding achievements in Biochemistry and Molecular Biology or related sciences. It was endowed by the Lord Rank Centre fo ...

of the

Federation of European Biochemical Societies The Federation of the European Biochemical Societies (FEBS) is an international scientific society promoting activities in biochemistry, molecular biology and related research areas in Europe and neighbouring regions. It was founded in 1964 and inc ...

* In 1976, he was elected to the

* In 1977, he was elected a Foreign Member of the Royal Society (ForMemRS) * In 1985, he was awarded the

Japan Prize is awarded to individuals whose original and outstanding achievements in science and technology are recognized as having advanced the frontiers of knowledge and served the cause of peace and prosperity for mankind. As of 2024, the Japan Prize h ...

. * In 2000, the Rashi Foundation established the Katzir Scholarship Program in honor of Katzir, one of the first members of its board of directors. * He is also a recipient of the Tchernichovsky Prize for exemplary translation. He also received honorary degrees from various scientific societies and universities worldwide. The Department of Biotechnology Engineering at the ORT Braude Academic College of Engineering in

Karmiel Karmiel () is a city in the Northern District of Israel. Established in 1964 as a development town, Karmiel is located in the Beit HaKerem Valley which divides upper and lower Galilee. The city is located south of the Acre–Safed road, from Sa ...

was named after him during his lifetime.

References

External links