Archaeologists uncovered a second cannonball near the Alamo Church that may have been fired during the 1836 Battle of the Alamo, undisturbed for 190 years.
https://www.foxnews.com/travel/rare-cannonball-emerges-from-ground-alamo-likely-untouched-nearly-190-years
https://www.foxnews.com/travel/rare-cannonball-emerges-from-ground-alamo-likely-untouched-nearly-190-years