This is the date when Alts were at their peak with bitcoin dominance being pushed down to all time low 35%.
This was also the date when its a day before when bitcoin bubble popped from the Dec 2017 $20k all time high to losing 75% of its value few weeks later.
But not the date alts started to moon, i mean back in 2017 by now alts already mooning because i could remember telling a friend what alts to buy during the 2017 December, it was a great period for alts till early 2018, Damn! it was a time to remember to be honest, i could remember my favorite app was blockfolio because of the way my portfolio was increasing with the few alts i hold,
unfortunately, this time it seems alts are being excluded from the fun.