P66’s script, codex build, and paratext converge on 125–150 C.E.; late redatings rely on non‑diagnostic comparanda and ignore the manuscript’s early micro‑features.
Defending the Early Date of P75: A Rebuttal to Fourth-Century Redating Proposals
P75’s script, codex design, and paratext converge on 175–225 C.E. Late redatings misapply non‑diagnostic comparanda and ignore the manuscript’s micro‑features.

