When Ireland welcome Wales to Dublin for the start of this year's Six Nations, it is just the latest edition of a long rivalry.
Perhaps that should say "very long rivalry" as their first tournament encounter came all the way back in 1884 when Wales won in Cardiff.
The next two Home Nations victories would also go to the Welsh, until 1888.
That year at Landsdowne Road, which had opened 16 years before, Landsdowne clubman Thomas Shanahan scored a try and set up another for his clubmate RG Warren, who would later become president of the IRFU between 1895 and 1896.
Maxwell Carpendale also added a drop goal, while Dr. Daniel Frederick Rambaut - a psychiatrist by trade - added a conversion.
But it was Waterford-born front-row Shanahan who made history on March 3rd 1888 becoming the first forward to be played on the wing.
His fifth and final Ireland cap came seven days later in a loss to Scotland.
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