Somehow or other our tiny sub has grown to have thousands of subscribers. Not sure how that happened but it's great to have all of you! For those of you that are interested, take a look at some of our traffic stats from the past few months :D
Historically, indigo was a natural dye extracted from plants, and this process was important economically because blue dyes were once rare. Nearly all indigo dye produced today — several thousand tons each year — is synthetic.
I've watched this sub grow over nearly seven years from a few thousand to ONE MILLION users as of last night. From me to you, Thank you for everything! (F)