The invention of writing and reading might be the single most miraculous achievement of the human mind.

We are safe for renown now, even though our labors began and ended with this single achievement.

This has been described as by far the finest single achievement in British discus history.

His single greatest academic achievement during the year, though, was to be the youngest winner of the prize essay competition in the school's history.

This single achievement, however, did not mean that trains began regular services with speeds of up to 250 km/h.

Often perceived as his single greatest achievement in the field of literature, they have been published together along with his life story.

This was perhaps his single greatest achievement and the one for which he most deserves to be remembered.

Not a single notable achievement of this extraordinary man was mentioned.

Significant changes were made to school funding, something Whitlam regarded as "the most enduring single achievement" of his government.

The single most significant technical achievement in the development of Dolphin is the pressure hull itself.