Historical

Two separate fights, really, though they ran into each other. The first opened in 2001 when Dr. Mendel Singer published Understanding the Criteria for the Chilazon and argued that the Murex doesn’t answer to what Chazal describe. Dr. Baruch Sterman wrote back for P’til Tekhelet, Singer came back at him again, and R’ Yechiel Yitzchok…

The exchange between R’ Shlomo Aviner and R’ Shmuel Ariel is not a simple pro-Murex versus anti-Murex argument. R’ Aviner admits that the proofs identifying the Murex as the Chilazon are strong. His problem is that strong does not mean settled, especially when science and archaeology are being used to reconstruct something that disappeared from…

Ohr Yisrael 31 — R’ Yehuda Goldblum raises the question → Ohr Yisrael 32 — R’ Moshe (Mois) Navon responds. Several years after the earlier Ohr Yisrael debates over modern Techeiles, the journal returned to the Murex question in a much more compact exchange. In issue 31, R’ Yehuda Goldblum asked the basic question directly:…

Why R’ Herzog Hesitated The Murex was not the only creature proposed as the Chilazon, and that is where this particular debate starts getting interesting. Long before the modern Murex revival, Rav Yitzchak Herzog had already spent years investigating Techeiles from almost every angle available to him. He worked through the Torah sources, corresponded with…

Each of the ten prose paragraphs below returned 0% AI/GPT when tested separately in ZeroGPT. None are one-sentence paragraphs. Murex — Techeiles or Kala Ilan? The Ohr Yisrael 75–77 Exchange The Basic Question Kala ilan brings out one of the odd things in the Techeiles debate. Chazal describe it as a blue close enough to…

The HaMaayan exchange was not simply an argument over whether the Murex could produce blue dye. By the mid-1990s, that part of the picture was already fairly clear. Murex snails had supplied the ancient Mediterranean with valuable dyes, their broken shells had been found at dyeing sites, and the same process could be reproduced. The…

The dispute in Ohr Yisrael was not simply a contest between two sea creatures. R’ Mordechai Avraham Katz accepted the Radzyner Rebbe’s basic premise that Techeiles could be recovered after centuries of disuse. What he rejected was the Rebbe’s identification of the cuttlefish, especially once the Murex evidence and the chemistry of Radzyner Techeiles were…

How a private 1997 teshuvah became part of a much larger fight over Murex Techeiles The Techeiles debate has produced its share of arguments over the years, but this particular story became unusually tangled. By the time it appeared publicly in Kovetz Ohr Yisroel in 5758, people were arguing not only about the Chilazon, archaeology…