The first post office was established in one of these
Tavern
The largest
Blue
Pulled from the stone
Excalibur
The first tribe with a writing system
Cherokee
Not white
Black Beans
Famously, this gem once traveled through the mail to the Smithsonian
The Hope Diamond
Hunted by Ishmael
Sperm
The sword of Roland
Durandal
The largest confededration in Native American history
Iroquois
Also a horse's coat pattern
Pinto bean
Him, the first postmaster general
Ben Franklin
Echolocation
Joyeuse
Runners down the Andes mountains
Incas
Possibly Peruvian
Lima beans
This, the leading cause of injuries in postmen
Dogs
Famous "whale"
Orca
Wielded by El Cid
Tizona
The last Indian war, centered in Idaho
Nez Perce
The Italian name for kidney
Cannellini
The state with the first post office
New Hampshire
This, the translation for narwhal from Old Norse
Corpse whale
Gifted to Muhammed
Zulfiqar
Built hills in Mississippi
Mound People
The Pennsylvanian car dealer
Fred Beans