New proposal once we have gone back by date as far as we can (List by KM# or similar reference#)

Due to the long running, and brilliant forum page, of using the date on a coin to add these coins to the forum, I was wondering if a similar forum could be started later, with using KM#1 and upwards. Obviously, other reference, such as Y#1, could also be used at the same time.

A good concept, but with some complications.
There are probobly 300 KM#1s, but only 20 KM#100s and perhaps five KM#200s. I have just estimated, maybe these numbers are known?
If one day is allowed per # it will end in a few months. There will be many choices in the first few days, and very few choices in the last many days.
But, if the number of days began at 10 and declined one day per decade until reaching one, and remain one day per # thereafter, that would add two months and allow for many contributions in the large population low #s.
In fact after 100, the KM#s per day could go to 10 per day.

It would make a good opportunity to study KM#s, and other catalogues, intensively.

You can know how many coins are referenced on numista under the same KM number via the advanced search tool

We can go up to the KM# 3275, but other references are added every year for this country : https://fr.numista.com/catalogue/pieces131199.html

Evidently I know less of KM#s than i should.

If it can go to thousands, perhaps a logarithmic function should be used,
or years could go by when no one posts !

Another possibility is a thread where people just post their KM#1s. Maybe there would be a limit of one coin per day per poster?

I predict that the by-year thread will start to peter out around the mid 17th century; which means we still have over 200 days of healthy posting on there... and then of course there's the country thread. So no rush to find a new topic for a daily thread.

Something I was thinking is that maybe we could do monarchs/political regimes; e.g. for English/British monarchs, we do one week where we post our best Elizabeth II coins, then George VI coins the next, and so on.

I see this as an alternative to dates or countries. If there are KM#1's, then hopefully more people will add them throughout the time allocated per KM#.
If it is anything like the present date or country, there will not be that many added.
For example. Today it's Jordan. Only 7 different coins added out of the total on Numista of 128. (5.46%). Even Jersey only got 10.28%
Some are interested in these forums, others are not, so is it worth a try?