Soon afterwards the Parliament-Parliaments were then triennial-was dissolved, and the canvass for a general election set in amidst unusual excitement.
"Daniel Defoe"
William Minto
It may be true, as some allege, that a revision of the Prayer Book would shake the Church, but it is more likely that half a dozen patchings at triennial intervals would shatter it.
"A Short History of the Book of Common Prayer"
William Reed Huntington
For The Blue Bird Maeterlinck was in 1912 awarded, for the third time in succession, the Belgian "triennial prize for dramatic literature."
"Life and Writings of Maurice Maeterlinck"
Jethro Bithell