Born on this day 1929 in Cardiff,

Bobi Jones , a Welsh Christian academic, who is one of the most prolific writers in the Welsh language.

Bobi Jones is an author of international significance, a Welsh nationalist and a strong supporter of the Welsh language, with his major contribution being in the field of teaching Welsh to adults.  

On 23rd May 1832, The Festiniog Railway Company was set up by Act of Parliament.  It is the world's oldest surviving public railway company. 

Originally built to serve the slate industry of Blaenau Ffestiniog, the line was initialy operated by gravity, kept under control by brakesmen who leapt from wagon to wagon tightening or loosening the brakes while their colleague on the front wagon blew the horn to warn of its approach. Steam locomotives were introduced in the 1860s.  

During the evening of 23 May 1970, the Britannia Bridge spanning the Menai Straights was destroyed by an accidental fire. As a result, the bridge had to be completely rebuilt. 

The Britannia Bridge was originally designed and built by Robert Stephenson in 1850, a tubular bridge of iron box-sections; at the time, at 1,511 feet, it was the longest bridge of that type  in the world.  It was needed to accommodate the increasing popularity of rail travel  between London and Holyhead.    

Born on this day 1981 in Cardiff,

Gwenno Saunders , a dancer and musician, best known as a singer and keyboard player with The Pipettes. 

Born this day 1893 in Ystradgynlais,

Sir Tudor Thomas , an opthalmic surgeon, who in 1934 restored the sight of a man who had been blind for 27 years using a pioneering corneal grafting technique. He instigated the establishment in 1955 of a national eye bank.  

Born this day 1954 in Cwmgwrach, near Glynneath,

David "Dai" Richards , a former Wales and Lions rugby international.