Summer begins at 4:13 here tomorrow morning. Tomorrow is the official longest day of the year. While searching about that, I found a listing of themes and the days someone has tried to tie to those themes. I doubt there are an infinite number of possible themes and subjects that a day could be devoted to, but the possible number has got to be very high.
I discovered that today is National Bald Eagle Appreciation Day, Ugliest Dog Day and Nystagmus Day, you know when we sympathize with those who suffer nystagmus. I want to be sympathetic to all who suffer, are hungry, in pain, can't read, don't like to read. Many charities helpfully place heart-stopping photos of people suffering on the envelopes they use to request some of our funds. It is not just the negatives, though. Flower Day, Tune Day, Physical Motion Day and Blueberry Pie Day all need to be on the calendar if they aren't already.
There are several websites that will email you the celebration themes of the day if you will just kindly give them your email address. You can search for what is celebrated today.