Evidence so far indicates humans first settled into fixed colonies/cities around 45,000 years ago starting in eastern Europe. These people are referred to as neolithic, where as mobile units without a fixed geography are referred to as archaic. It wasn't until around 10,000 years ago that humans first civilized (around 8,000 to 7,000 BCE).
So this means people, the same mentioned in the article, civilized several thousand years before they had writing. The only real difference between neolithic settlements and civilization is governance and influence. Writing is beneficial, but influence can be accomplish through various means including: arts, religion, culture, organized military activity, and more.
It is also worth pointing that civilization was extremely unappealing to the uncivilized who first encountered it. The most immediate symptoms of civilization are social restrictions, class stratification, and loss of mobility of which all are essentially opposing aspects of freedom.