The commemorative speech reading and fly-past at Whitehall is being attended by battle veterans.
Inside the Welfare Hall, a middle-aged couple are doing a brisk trade in commemorative coasters that read: "Keep calm, Maltby and carry on!" while the union banners are laid against the wall.
So I accepted an invitation to join in one of the commemorative events, a marathon poetry reading at the GPO.
I had just read a commemorative newspaper article about it, written on the occasion of prices reaching $4 a gallon around Memorial Day.
The kitchen cabinets are stocked with commemorative pint glasses that read "President Donald J. Trump Childhood Home" and then, in much smaller print, "Not affiliated with the Trump Organization, at all".
The new items include bottles of Hennessy Cognac, bearing labels that read "44"; commemorative issues of publications like The New Yorker, Newsweek, USA Today and The Washington Post; and T-shirts from the Presidential Inaugural Committee that urge "Be the change".
Malls are open until midnight and there's an abnormal surplus of "safe" last-minute gifts (read: robes, commemorative ornaments and off-brand bath sets) in the front of every store.
Among other events, the treaty will be read aloud, a commemorative oak tree will be planted (and 350 white oak saplings distributed free), the Leaf Arrow-Native American Storytellers will tell tales, and cooking demonstrations will take place outside a wigwam.
The library will also have reproductions of the original, signed petition from the protest, available for visitors to read and take as a commemorative keepsake.
In the lobby of the church, people wrote on commemorative boards - God bless our newest angels, read one message.
