<P> In rugby union , a Grand Slam ( Irish : Caithréim Mhór . Welsh : Y Gamp Lawn. French : Grand Chelem ) occurs when one team in the Six Nations Championship ( or its Five Nations predecessor ) manages to beat all the others during one year 's competition . This has been achieved 39 times in total , for the first time by Wales in 1908 , and most recently by Ireland in 2018 . The team to have won the most Grand Slams is England with 13 . </P>
<P> In rugby union , a Grand Slam ( Irish : Caithréim Mhór . Welsh : Y Gamp Lawn. French : Grand Chelem ) occurs when one team in the Six Nations Championship ( or its Five Nations predecessor ) manages to beat all the others during one year 's competition . This has been achieved 39 times in total , for the first time by Wales in 1908 , and most recently by Ireland in 2018 . The team to have won the most Grand Slams is England with 13 . </P>
when was the last time ireland won grand slam
when was the last time ireland won grand slam
2018
2018