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2
votes
1answer
67 views

How widespread was the practice of Judaism in pre-WW2 Europe? [closed]

Leading up to World War 2 (1930s etc.), what percentage of European Jews practiced "Orthodox" Judaism?
1
vote
1answer
106 views

What percentage of Jews are descendants of Abraham?

From my limited understanding of the religion being Jewish requires being born of Jewish parents or following some moderately complex procedures. From that I would assume that every Jew alive today ...
2
votes
0answers
48 views

Jewish Population (based on Biblical Definition)

There are a number of official statistics concerning the population of the Jewish Race and the Religion. But I have never seen one which tried to account for the definition used on this site. A ...
2
votes
0answers
85 views

Don't Israeli women fast?

More than one Israeli has told me that women in Israel don't fast. More specifically, that a large percentage of otherwise observant (healthy, non-pregnant, non-nursing) Jewish women in Israel do not ...
0
votes
1answer
259 views

Pidyon HaBen rate

About how many pidyon haben ceremonies are required to be performed per 1000 Jewish births in the past few decades? The requirements for a pidyon haben are: Both parents are Israel, not Kohen or ...
12
votes
3answers
436 views

What happened to the bechorim (first-borns)?

In the begining of sefer bamidbar, the males between 20 and 60 are counted and it says that there are over 600,000 of them. Theoretically each, or most, of these people should have had a first-born ...
14
votes
4answers
218 views

Unusual number of males among the 70 who went to Egypt

B'reshis chapter 46 lists the seventy descendants of Yaakov who went to Egypt. It actually lists sixty-nine: let's assume Yocheved was the seventieth, as Rashi explains. It also lists (in pasuk 12) ...
7
votes
3answers
1k views

what percentage of Reform Jews are halachically Jewish?

Was there ever a study done on the percentage of Reform Jews who would be considered Jewish according to Halacha?
5
votes
0answers
234 views

Statistics regarding how many people convert yearly

What are the statistics for the last 50-100 years as to how many people convert and become Geirim yearly?
9
votes
3answers
193 views

Why does the census “of all who are able to go forth to war” include a few women?

The census in Bamidbar 26 is directed thus: Take the sum of all the congregation of the children of Israel, from twenty years old and upward, by their fathers' houses, all that are able to go ...
8
votes
1answer
228 views

Halachic significance of the plurality of Jews living in Israel

I once heard that if Israel has the largest Jewish population, it has a significant effect on certain Halachot. What are the criteria for this, and what halachot are affected? (Shmita is the one most ...
11
votes
1answer
284 views

2.4 million killed according to Rashi in B'shalach. Why does no one talk about it?

In the begining of Parshat B'shalach, Rashi says that one p'shat for "Vachamushim" means one fifth, because during Makas Choshech, 4 out of 5 were killed out, and it happened during the time it was ...
7
votes
3answers
239 views

relative fractions of Kohanim and Levi'im

Does anyone have reliable statistics (and barring that, reasonable anectdotal evidence) of the fraction of Kohanim, Levi'im, and Yisraelim in various Jewish communities today. By "communities" I don't ...