Armstrong always insisted that he said, 'That’s one small step for a man.' Yet everyone omits the 'a' when they repeat the quote. A linguist tries to get to the bottom of what happened.
In the space of a few short years, deaf Nicaraguan school children created their own language. This example may give us a clue about how spoken language developed over thousands of years.
We humans are capable of vocalising many different words in a range of languages. But what is it that gives us a remakable and variable voice?