From Wikipedia:

John Wilder Tukey (/ˈtuːki/; June 16, 1915 – July 26, 2000) was an American mathematician and statistician, best known for the development of the fast Fourier Transform (FFT) algorithm and the box plot.

The comic strip was published on June 18. The last sentence combines a precise but wrong statement (Turkey would be 110,000 years old today) with an imprecise but correct statement (his birthday is some time that week).