Eboracum over Britain. Whilst the latest datable inscription referencing "Eboracum" dates from AD237, the continuation of the settlement after this time is certain. Building work in the city continued in the fourth century under Constantine and later Count Theodosius. The locally produced Crambeck Ware pottery arrives in "Eboracum" in the fourth century – the most famous form being intricately decorated buff-yellow 'parchment ware' painted with bright shades of red. The effect of Constantine's religious policy allowed the greater development of Christianity in Roman Britain – a bishop of York named 'Eborius' is attested here and several artifacts decorated with chi-rho symbols
Latin delta Latin delta Latin delta (ẟ) is a Latin letter similar in appearance to the Greek lowercase letter delta (δ), but derived from the handwritten Latin lowercase d. It is also known as "script d" or "insular d" and is used in medieval Welsh transcriptions for the sound (English "th" in "this") represented by "dd" in Modern Welsh. A proposal to include several medieval characters in the Universal Character Set included this character with the name LATIN SMALL LETTER SCRIPT D. This was renamed to LATIN SMALL LETTER DELTA and added to Unicode as U+1E9F when Unicode 5.1 was released on