Atwood played a major role in one of the most significant technological achievements of the 20th century - taking man to the Moon and back.

Light of Exploration is an exhibit which showcases human scientific achievements of the 20th century.

That was one of the great achievements of the 20th century.

The data-retrieval system was one of the great technical achievements of the previous century.

After all, they gave everyone the right to live freely, which was possibly the noblest achievement of the 20th century.

I'd say the Tintin books are one of the better artistic achievements of the twentieth century.

The production of affordable motor vehicles is amongst the greatest achievements of the 20th century.

The greatest achievement of the 4th century was in philosophy.

The Soviet era saw some of the most significant technological achievements of the 20th century, including the world's first human spaceflight.

They had psychic and technological energies far exceeding the technical achievements of the 20th century.