Last year, on December 17, 2017, Bitcoin hit its all-time high of $19783.21, having climbed from a value of under $1000 less than a year before that.
source https://www.google.com/url?rct=j&sa=t&url=https://prohbtd.com/i-spent-a-weirdly-analog-night-in-a-cryptocurrency-club&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNHlzEkQFs5sL_E-i7EyH-gaD2Z1Ww
