Color coded.............6 of them.......the 1st perfect number is 6..........the silver line.........is the newest......the color of the Confederacy.........which was mainly in Virginia, the capital......Richmond for most of the war......Danville was the last capital.........Phineus and Pherb.........rockets.......like Johnny Rocket........the silver line is the one that goes to Dulles.....yippie ki yo, homeboy!!!1

Line Name	Opened	Stations	Distance		Termini
			mi	km	Western/Southern	Eastern/Northern
Red Line	1976	27	31.9	51.3	Shady Grove	Glenmont
Blue Line	1977	27	30.3	48.8	Franconia–Springfield	Largo Town Center
Orange Line	1978	26	26.4	42.5	Vienna	New Carrollton
Yellow Line	1983	17	15.07	24.25	Huntington Franconia–Springfield(Rush+)	Mount Vernon Square (rush hours) Greenbelt (Rush+) Fort Totten (other times)
Green Line	1991	21	23.04	37.08	Branch Avenue	Greenbelt
Silver Line	2014	28	29.6	47.6	Wiehle–Reston East Ashburn (opens 2019)	Largo Town Center