Birnbaum

Isaac יצחק means He Laughs, or May God Smile.
Isaac was the son of Abraham, and the father of Esau and Jacob.
Isaaq's mother, Sarai, laughed when God told Abram of their son's eventual birth, because she was past the age of childbearing.
Isaac died at age 180 years, making him the longest-living patriarch.
Isaac was also the only one whose name was not changed, and the only one who did not leave Canaan.
Isaac instituted the afternoon prayer, based on Genesis 24:63 "Isaac went out to meditate in the field at the eventide".
In early Islam, here was a dispute over the identity of the sonw ho was to be sacrificed to God; early scholars believed it was Isaac rather than Ishmael, notably Ibn Ḳutayba, and al-Ṭabarī. , while other hold that the promise to Sarah was of a son, Isaac, and a grandson, Jacob (11:71–74), which excluded the possibility of a premature death of Isaac; Muslim scholars hold that it was Ishmael.
The dispute was more concerned with Persian, rather than Jewish rivalry with Arabs, since the Persians claimed to be of descendants of Isaac.
Yitzhak Rabin, an Israeli politician and general, was the fifth Prime Minister of Israel, serving two terms in office, 1974–1977 and 1992 until his assassination in 1995.
Yitzhak Shamir (Icchak Jeziernicky), one of the three leaders of Lehi, nickname "Michael" for Michael Collins, was Prime Minister of Israel from 1983 to 1984 and again from 1986 to 1992.
Variants:
* Yitrzhak
* Yitzkhak
* Yitzchaq
* Yiẓḥaq
* Yiṣḥāq
* Ishak
* Izak
* Ishaq
* Isaaq
* إسحٰق
* Icchak