For reasons unknown to me today is National Yellow Pig Day. It is said to bring the unique attributes of the number 17 to the foreground. In particular it's significance to mathematics is mentioned in the literature.
Yeah, it's a prime number and the first four prime number may be added with a sum of 17. The 17th ammendment of the US Constitution gave citizens the right to elect senators by popular vote. In times prior the legislature performed that task. The atomic number of chlorine is 17. It is claimed that the average school bus with a load of passengers weighs 17 tons.
The factoids grow over time.
The day is said to originate in the early 1960s by mathematics heads Michael Spivak and David Kelly who were analyzing the properties of the number 17 and some yellow pig the context of which has escaped me.
Anyway, I'm not too keen on the yellow pig angle which seems central to the thing. Likewise, I am not particularly enamoured by prime numbers, 17 or not. Never was a numerophile either.
I'm more of an algebra with words type of guy. Code anyone?
My late maternal grandfather who departed prior to my birth was born on the 17th of July. My beloved mama was born on the 17th of June. My aunt Glenda who I also love dearly was born on the 17th of April. Turns out the number 17 is quite significant to my existence.
Otherwise, this appears as one of those eccentric days which may have some mysterious meaning outside the realm of coincidence which remains well beyond me. As I note increasingly over the years there remains much I do not know. There are worse things than some circuitous meaningless exercise in a place outside your sphere of existence.