During the apartheid, sporting contact with South Africa had become highly controversial. Despite this, several so-called Rebel Tours left the UK, sparking huge protests.
Twenty five years ago, one such tour saw ten Welsh rugby internationals and six Welsh Rugby Union officials fly out to South Africa as part of a World Fifteen rugby team.
The tour had been organised independently of the WRU, who had never sanctioned the trip, but the backlash rocked the foundations of Welsh rugby.
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Workers on the First Great Western service are set to walk out from Wednesday evening until the start of services on Saturday morning.
It's a dull and dreary start to the day for much of Wales, but hang on in there - things can only get better!
Some very wet weather will sink it's way south and east overnight, with mist and murk developing around coasts.