* We have coded a total of 17,537 different values for 49 variables in 377 polities.
Here is a legend that will help you understand the metadata better:
Present Partially coded Range Absent Suspected Unknown Unknown Uncoded To Be Coded
Long Wall RANGE   
 273 coded records
 361 coded records
Wooden Palisade A/P/U/~   
 369 coded records
Earth Rampart A/P/U/~   
 368 coded records
Ditch A/P/U/~   
 366 coded records
Moat A/P/U/~   
 370 coded records
 363 coded records
 372 coded records
Fortified Camp A/P/U/~   
 360 coded records
 367 coded records
 368 coded records
Copper A/P/U/~   
 338 coded records
Bronze A/P/U/~   
 363 coded records
Iron A/P/U/~   
 378 coded records
Steel A/P/U/~   
 375 coded records
Javelin A/P/U/~   
 373 coded records
Atlatl A/P/U/~   
 365 coded records
Sling A/P/U/~   
 368 coded records
Self Bow A/P/U/~   
 374 coded records
Composite Bow A/P/U/~   
 369 coded records
Crossbow A/P/U/~   
 349 coded records
 344 coded records
 353 coded records
 362 coded records
Handheld Firearm A/P/U/~   
 364 coded records
War Club A/P/U/~   
 362 coded records
Battle Axe A/P/U/~   
 364 coded records
Dagger A/P/U/~   
 372 coded records
Sword A/P/U/~   
 375 coded records
Spear A/P/U/~   
 375 coded records
Polearm A/P/U/~   
 349 coded records
Dog A/P/U/~   
 333 coded records
Donkey A/P/U/~   
 354 coded records
Horse A/P/U/~   
 375 coded records
Camel A/P/U/~   
 362 coded records
Elephant A/P/U/~   
 344 coded records
Wood Bark Etc A/P/U/~   
 337 coded records
Leather Cloth A/P/U/~   
 354 coded records
Shield A/P/U/~   
 374 coded records
Helmet A/P/U/~   
 375 coded records
Breastplate A/P/U/~   
 362 coded records
Limb Protection A/P/U/~   
 367 coded records
Scaled Armor A/P/U/~   
 351 coded records
Laminar Armor A/P/U/~   
 347 coded records
Plate Armor A/P/U/~   
 358 coded records
Chainmail A/P/U/~   
 355 coded records
 333 coded records
 314 coded records
 333 coded records