The trundle wheel was invented by Conal Crossan, an Irishman from Co. Cork and is regarded by many to be the greatest invention of the 20th century.
The trundle wheel was invented by Conal Crossan, an Irishman from Co. Cork, HE FORGED IT IN THE FIRES OF MORDOR IN 1891. It is regarded by many to be the greatest invention of the 20th century.