The Asparagaceae Family was named and described by Antoine Laurent de Jussieu in Genera Plantarum in 1789.
Plants of the World Online lists 119 accepted genera in the Asparagaceae Family. The Wikipedia says there are 119 genera with around 2,900 combined species.
It’s complicated to explain, but so far seven well-recognized genera were basically ripped apart, renamed and reclassified as a result of the APG II system of 2003 & APG III system of 2009. I am not sure if the APG IV system of 2016 had a further effect or not. Now the seven reclassified families have been renamed and are now considered subfamilies of the Asparagaceae Family. Some authorities recognize the subfamilies while others do not which can be somewhat confusing when doing research. You would be surprised what genera are classified in the same family now, such as Agave and Asparagus. They appear to have nothing in common to us “normal” gardeners. Then again, what is normal? Classification of plants goes much deeper than what we can see with our eyes.
The seven former families renamed: From the Wikipedia…
Subfamily Agavoideae-formerly Agavaceae Family and Hesperocallidaceae Family.
Subfamily Aphyllanthoideae-formerly Aphyllanthaceae Family.
Subfamily Asparagoideae-formerly Asparagaceae Family.
Subfamily Brodiaeoideae-formerly Themidaceae Family.
Subfamily Lomandroideae-formerly Laxmanniaceae Family.
Subfamily Nolinoideae-formerly Ruscaceae Family.
Subfamily Scilloideae-formerly Hyacinthaceae.