When did the NFL red flag turn yellow?
The NFL penalty flags were never red. They were white. They changed the flags from white to yellow in 1965.
Short answer: blood Longer answer: The flags of communist states all have red backgrounds, copied from the Soviet flag. This background honors the red flag of the Paris Communards of 1871. This in turn is based on the red flag used by the Jacobins during the French Revolution in the 1790s. Vietnam's pre-communist flag had a yellow background and either a red stripe or three red stripes. So red and yellow are traditional Vietnamese national…
Not at all. The Spanish flag has three horizontal stripes: red, yellow and red. The yellow stripe is twice the size of the red stripes. The Spanish coat of arms is located on the, yellow stripe, to the right of the flag. The Mexican flag has three vertical stripes of the same size: green, white and red with the Mexican coat of arms on the center of the white stripe.
During the Viet War the North Vietnamese Army (NVA) flag was solid red with a yellow star centered on it; NVA tanks had yellow stars on their turrets. The North Vietnamese Air Force MiGs had yellow stars on them with red backgrounds. The VC flag (no nation) was blue & red with a yellow star centered on it.