All the septuagenarians remembered their seventieths fondly.
One of seventy equal parts of a whole.
Seventieth Sentence Examples
In the hundred and seventieth year (142 B.C.) the yoke of the heathen was taken away from Israel and the people began to date their legal documents "in the first year of Simon the great high priest and commander and leader of the Jews."
He died of gangrene of the leg in his seventieth year.
In his seventieth year, as lieutenant-general of the North, he led the English host on the great day of Flodden, earning a patent of the dukedom of Norfolk, dated 1 February 1513/4, and that strange patent which granted to him and his heirs that they should bear in the midst of the silver bend of their Howard shield a demi-lion stricken in the mouth with an arrow, in the right colours of the arms of the king of Scotland.
They had an existence of six months, and were finally received back by the state at about the seventieth part of their face-value in coin.