Recently, I have read the section of Date and Times in An Elementary Introduction of Wolfram Language. This section has mentioned a function called WordFrequencyData. I had tried some words to observe the word frequency in time series based. For example, I tried to find the word frequency of "eminem".
DateListPlot@
WordFrequencyData["eminem","TimeSeries",Language->"English"]
And it gave out the result like this:
![enter image description here](https://community.wolfram.com//c/portal/getImageAttachment?filename=5853%E6%88%AA%E5%9C%962020-05-09%E4%B8%8B%E5%8D%889.19.30.png&userId=231129)
Due to the result, it seems like the word "eminem" has more use in the years between 1800~1900. But after searching on google, "eminem" is a rap singer singer name created after 1900. So I have a question about the accuracy of database about word frequency. What is the resource of word frequency. Or maybe there is a wrong in code that Wolfram language can't interpret accurately.