After practicing illicit distilling for decades George Smith was one of the first to apply for a license after the excise act of 1823. Hence this they clame to have been established in 1824.
However the original distillery at Drummin burned down in 1858, which led to a rebuild at it’s current location on Minmore in 1859.
Glenlivet is the best selling single malt in the US. Production have increased from 700 cases in 1950 to over 1 millin today.