Mark Richards wrote:
Yes, we should document popular math errors too, and
popular misconceptions about how gravity works! ;)
Except that these aren't errors. Dividing time in such ways is
completely arbitrary either way you do it. "The 20th century" is
1901-2000, and an arbitrary span of 100 years. "The 1900s" is
1900-1999, and an arbitrary span of 100 years. Neither is particularly
"correct". The only thing I could possibly see as incorrect is if you
were to refer to 1900-1999 as "the 20th century" or to 1901-2000 as "the
1900s".
-Mark