The answer is: a. Baseball
In the late 1800s, baseball was the most played sports in united states. Students all across the country played it during their breaks, and it is also common among employees who worked in corporations.
This lasted until the mid 1900s, when basketball started to became really popular in united states and slowly replaced baseball as the national pastime.
I believe this is referring to the Contra groups of Central American nations
It was "Vladimir the Great" who ordered Russians to convert to Orthodox Christianity, since he was very much impressed by the Orthodox churches in Constantinople.
· In 1775, the now-legendary frontiersman Daniel Boone blazed a trail through the Cumberland Gap–a notch in the Appalachian Mountains located near the intersection of Kentucky, Virginia and Tennessee–through the interior of Kentucky and to the Ohio River.
4 the introduction of sound
