How crazy is this ommision of history? I am so glad that I found this example. It is preceisely why I think everyone in the world who has access should keep a journal, because someday, "they" will try and rewrite all history. Imagine the story about the world trade center attack when its told in 3005.
Labor Day History (by the department of Labor) -

- No mention of May Day
May Day and Labor Day (ruckus at Washington.edu ) -
I remember when I lived in Germany, I attended a May day celebration and asked about its origins. The people their laughed at my ignorance telling me it started as an American Holiday. The reaosn I didn't know at the time is precisely because I was taught form texts like the first link while attending public school.