Creation: US 219 appeared in Virginia in 1937, replacing VA 124 from Petersburg, WV to Rich Creek and VA 8 from Rich Creek to the West Virginia Line at Glen Lynn.

VA 8 and VA 124 1933 Official

US 219 appears 1937 Official

Adjustments: In 1947, US 460 was added to US 219 from Rich Creek westward.
In Nov 1975 (CTB), US 219 was rerouted in Rich Creek to the new 4-lane US 460 like it runs now, then US 219-460 used today's US 460 west to Glen Lyn. The old route became SR 806 (now discontinuous and is SR 1308 on the Glen Lyn end).
It is unclear when US 219 was removed from its US 460 duplex. I can find no mention of this in the CTB and the latest Giles COunty map I have is 1961. I do know that US 219 was still posted from I-77 in the summer of 1982. VDOT Officials stopped explicitly showing a duplex in 1967 (shows no shield at all).
Improvements:  paved upon designation; multilaned with its US 460 duplex in 1975.
No multilane segments today.
Posted:  Fully posted
Multiplexes:  None
Legislative names: None
Other names:  Federal St
Scenic Byway:  No segments
Comments: US 219 is currently the 3rd shortest US route in Virginia behind US 11E and US 11W.
Given its lentgh there is not much to discuss - the ride is over before you blink, but it does cross the only bridge I've seen with 2 different shielded date plates (last entry at this link).