The revival of the Hebrew language took place in Europe and Palestine toward the end of the 19th century and into the 20th century, through which the language's usage changed from the sacred language of Judaism to a spoken and written language used for daily life in Israel. The process began as Jews from diverse regions started arriving and establishing themselves alongside the pre-existing Jewish community in the region of Palestine in the first half of the twentieth century, when veteran Jews in Palestine (largely Arabic-speaking by that time) and the linguistically diverse newly arrived Jews all switched to use Hebrew as a lingua franca, the historical linguistic common denominator of all the Jewish groups. At the same time, a parallel development in Europe changed Hebrew from primarily a sacred liturgical language into a literary language, which played a key role in the development of nationalist educational programs. Modern Hebrew was one of three official languages of Mandatory Palestine, and after the Israeli Declaration of Independence in 1948, one of two official languages of Israel, along with Modern Arabic. In July 2018, a new law made Hebrew the sole official language of the state of Israel, giving Arabic a "special status".
More than purely a linguistic process, the revival of Hebrew was utilized by Jewish modernization and political movements, led many people to change their names and became a tenet of the ideology associated with settlement and renaming of the land, Zionism and Israeli policy.
The process of Hebrew's return to regular usage is unique; there are no other examples of a natural language without any native speakers subsequently acquiring several million native speakers, and no other examples of a sacred language becoming a national language with millions of native speakers.
The language's revival eventually brought linguistic additions with it. While the initial leaders of the process insisted they were only continuing "from the place where Hebrew's vitality was ended", what was created represented a broader basis of language acceptance; it includes characteristics derived from all periods of Hebrew language, as well as from the non-Hebrew languages used by the long-established European, North African, and Middle Eastern Jewish communities, with Yiddish being predominant.
Background
Historical records testify to the existence of Hebrew from the 10th century BCE to the late Second Temple period (lasting to 70 CE), after which the language developed into Mishnaic Hebrew. From about the 6th century BCE until the Middle Ages, many Jews spoke Aramaic, a related Semitic language. From the 2nd century CE until the revival of Hebrew as a spoken language circa 1880, Hebrew served as a literary and official language and as the Judaic language of prayer. After the spoken usage of Mishnaic Hebrew ended in the 2nd century CE, Hebrew had not been spoken as a mother tongue.
Even so, during the Middle Ages, Jews used the language in a wide variety of disciplines. This usage kept alive a substantial portion of the traits characteristic of Hebrew. First and foremost, Classical Hebrew was preserved in full through well-recognized sources, chiefly the Tanakh (especially those portions used liturgically like the Torah, Haftarot, Megilot, and the Book of Psalms) and the Mishnah. Apart from these, Hebrew was known through hymns, prayers, midrashim, and the like.
During the Middle Ages, Hebrew continued in use as a written language in Rabbinical literature, including in judgments of Halakha, Responsa, Biblical and Talmudic commentaries, and books of meditation. In most cases, certainly in the base of Hebrew's revival, 18th- and 19th-century Europe, the use of Hebrew was not at all natural, but heavy in flowery language and quotations, non-grammatical forms, and mixing-in of other languages, especially Aramaic. Hebrew also functioned as a language of secular high culture, and as a lingua franca between Jews from disparate countries. Jewish scientists and historians such as Abraham Zacuto and David Gans wrote in Hebrew, as did travelers such as Benjamin of Tudela and Chaim Yosef David Azulai.