Prior to the 20th century, those who had survived beyond young adulthood were increasingly vulnerable to which infectious diseases?

the answer is measles, mumps,rubella. there were no vaccines for these diseases at that time.

wood carving remains today the primary sculptural art form of the sub saharan continent. african art history shows the earliest wooden sculptures from the 17th c are attributed to the kuba, central zaire but the earliest surviving sub-saharan sculpture is a zoomorphic head found in 1928 in central angola.

i hope this .