Ysgol Syr Thomas Jones, Amlwch, yw'r ysgol gyfun bwrpasol gyntaf yng Nghymru, yn y DU mae'n debyg. Fe'i hadeiladwyd o ganlyniad i Ddeddf Addysg 1944 a ddaeth ag addysg uwchradd am ddim i bawb hyd at 18 oed. #DyddLlunModernaidd @RC_Archive @RCAHMWales @C20Cymru @C20Society @YsgolWales @AngleseyHist @northwalescom @casgliadywerin @RuralModernism @Y_S_T_J Cynlluniwyd yr ysgol gan Bensaer y Sir N. Squire Johnson, gyda'r gwaith adeiladu'n dechrau ym 1948. Gosodwyd y garreg sylfaen gan yr Ysgrifennydd Gwladol dros Addysg, D R Hardyman; agorodd yr ysgol yn swyddogol yn 1950 a chwblhawyd y gwaith adeiladu ym 1952. 2/4

Ysgol Syr Thomas Jones, Amlwch, is the first purpose-built comprehensive school in Wales, probably in the UK. It was built as a result of the 1944 Education Act that brought in free secondary education for all to the age of 18. #ModernistMonday 1/4 @RC_Archive @RCAHMWales @C20Cymru @C20Society @YsgolWales @AngleseyHist @Y_S_T_J @northwalescom @pplscollection @RuralModernism The school was designed by County Architect N. Squire Johnson, with construction starting in 1948. The foundation stone was laid by the Secretary of State for Education, D R Hardyman; the school opened officially in 1950 and building work was completed in 1952. 2/4

For almost 300 years, south Wales has been the focal point of the British tinplate industry, with the Pontypool rolling mill an innovative catalyst for tinplate manufacture. Founded in 1874 near Cwmbrân was Tynewydd tinplate works. @RC_Archives #TinplateTuesday 1/4 Founded in 1874 next to Pontnewydd railway station by Batchelor and Co (or Charles Roberts) Tynewydd passed through a number of owners before becoming part of the Redbrook Tinplate Co. of Monmouth. 2/4 coflein.gov.uk/en/site/415481…

Am bron i 300 mlynedd mae de Cymru wedi bod yn ganolbwynt i ddiwydiant tunplat Prydain, gyda melin rolio Pont-y-pŵl yn gatalydd arloesol i weithgynhyrchu tunplat. Yn 1873 sefydlwyd gweithfeydd tunplat Tynewydd ger Cwmbrân. @RC_Archives #DyddMawrthTunplat 1/4 Wedi’i sefydlu ger gorsaf drenau Pontnewydd gan Batchelor and Co (neu Charles Roberts), cafodd Tynewydd sawl perchennog ar hyd y blynyddoedd cyn dod yn rhan o Redbrook Tinplate Co., Sir Fynwy. 2/4 coflein.gov.uk/cy/safle/41548…

Mae post #DyddLlunArforol heddiw yn ymweld â thirnod eiconig Caerdydd: swyddfeydd Dociau Biwt, lle codwyd Adeilad y Pierhead yn 1896 fel swyddfeydd Cwmni Dociau Biwt. @RC_Archives 1/4 Mae’n adeilad deulawr Gothig gydag wyneb bric coch a terracotta. Mae tŵr cloc caerog uwchben y brif fynedfa a phanel terracotta campus ar y wyneb gorllewinol. 2/4

Today’s #MaritimeMonday post visits an iconic #Cardiff landmark: the Bute Docks offices, a magnificent Pierhead Building, erected in 1896 as dock offices for the Bute Dock Company. @RC_Archives 1/4 It is a two storey #Gothic building faced with red brick and terracotta. There is an embattled clock tower over the main entrance and a fine terracotta panel on the west face. 2/4

The exciting Neolithic discoveries in the Preseli hills of Pembrokeshire and the #stonehengelostcircle have recently made the news. Let us look at another intriguing monument contemporary with this landscape of tombs, stone circles and quarries, the Banc Du enclosure. 1/6⤵️ 2/6 The Banc Du Neolithic enclosure occupies the summit of a low hill at the western end of the Preseli Ridge. It was discovered from the air by @RC_Survey and surveyed by us in 2005. It has the title of being the first dated Neolithic enclosure in Wales.⤵️

1/10 Discovery! Abermagwr Roman villa, Ceredigion. Ten years ago this month, initial excavations directed by Dr Jeffrey Davies and Dr Toby Driver confirmed the existence of Ceredigion’s first (and still only) recorded Roman villa, and the most remote villa in Wales. 2/10 Roman villas are not common in Wales; fewer than 40 known or possible villas are recorded, and these are mostly in the south and east of the country. Abermagwr Villa was discovered as a striking cropmark during aerial photography in the exceptional drought of 2006.