A PHP Error was encountered

Severity: Notice

Message: Only variable references should be returned by reference

Filename: core/Common.php

Line Number: 257

Chhim Sothy "Bone mountain, blood river"
Oil painting 80 x 96 cm
BONE MOUNTAIN, BLOOD RIVER
By : CHHIM SOTHY
Cambodia/ born 1969
ARTIST CV

The prison without walls known as the Killing Field regime lasted 3 years, 8 months and 20 days (1975–1979) and turned Cambodia into a mass grave. Why were they so intent in eliminating the Khmer race?