When was the exact date that Slimcoin introduced their genesis block?

I've been surfing all corners of the internet looking for the exact date that Slimcoin introduced their genesis block. I need to include the date the coin first implemented Proof of Burn (PoB) in a whitepaper I'm completing for another cryptocurrency. The only problem is that this information doesn't seem to exist as far as I can tell, and I'm a pretty darn good researcher. Then, again, sometimes the information we need is right there in front of our noses the whole time.

So, I'm asking all you wonderful people to help me out. So far, I've found the original announcement post for Slimcoin on this forum as being made on May 3, 2015, yet other sources say Slimcoin was introduced in 2014. Is this a reference to the whitepaper's release or to the creation of the first genesis block (or something else)?

Basically, it seems like May 3, 2015 is, at the very least, a marker. If the coin was introduced at that date (via a public announcement or whitepaper release), then the genesis block was most likely generated later. However, the ambiguous information I've found so far also suggests that the genesis block may or may not have been released sometime in 2014....

Please, help...