How did the Law of Return change Jewish immigration to Israel?

The Law of Return, passed by the Knesset in 1950, fundamentally changed Jewish immigration to Israel by establishing a formal, legal right for Jews worldwide to immigrate—a process known as aliyah—and receive Israeli citizenship.123

By codifying this right, the law aimed to provide a secure haven for the Jewish people following the Holocaust and to ensure a Jewish majority in the newly established state. While immigration had occurred in waves prior to 1950, the law transformed these movements into a state-sanctioned process based on the principle that the right to return is inherent to being Jewish.24

The implementation of the law necessitated ongoing definitions of who qualifies as a Jew, leading to significant legal and social developments. Amendments in 1970 extended rights to the children and grandchildren of Jews, as well as their spouses, while subsequent court rulings addressed the status of converts and individuals practicing other religions. This framework has facilitated large-scale immigration from diverse regions, including the Soviet Union and Ethiopia, though it remains a subject of debate regarding religious definitions and the exclusion of Palestinian refugees.2