Has Jewish population rebounded from Holocaust?

WASHINGTON — In 1939, the global population of Jewish people worldwide peaked at around 16.6 million. That population was soon decimated by the Holocaust, which saw Nazi Germany and its collaborators kill approximately 6 million Jews.

In just a few horrifying years, the global population of Jews had fallen by more than a third.

This week, a new report by the Jerusalem-based think tank Jewish People Policy Institute made a startling announcement: The world’s Jewish population was finally approaching 16.6 million again. The announcement sparked headlines around the world, with many observers shocked that it could have taken 70 years for the global Jewish population to return to its pre-Holocaust peak. The problem is, it wasn’t entirely accurate.

Professor Sergio DellaPergola, perhaps the most well-known expert in Jewish demographics in the world today, is among those who have rebutted the reports. “It is a canard,” DellaPergola told the Times of Israel this week, suggesting that the numbers widely reported were both a result of “misunderstanding” and “journalistic counterfeit.”

When you look closely at the JPPI’s numbers, DellaPergola’s objections make sense. The report makes no bones that the number of self-identifying Jews in the world are around 14.2 million — a number DellaPergola had come to in his own work last year, published

It then, however, adds on to this a number of other people, including those with only one Jewish parent or those who identify as partially Jewish due to their family history. Some 348,000 Israeli citizens who came to Israel under the Law of Return but are not recorded as Jews are also included in the higher figure.

Traditionally, Judaism has a comparatively strict definition of who is Jewish, with halakha (Jewish religious law) requiring either that a person’s mother was Jewish or that they go through a formal conversion process.

Not all Jews agree with these definitions, however. The Law of Return, an Israeli legislation that allows Jews to immigrate to Israel, was amended in 1970 to allow “child and a grandchild of a Jew, the spouse of a Jew, the spouse of a child of a Jew and the spouse of a grandchild of a Jew” to enter the country, leading hundreds of thousands of non-Jews to move to Israel.

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