Seudónimo Seudónimo 12-05-2020 Social Studies contestada When did the Harappan civilization exist? northc04 A) 3000 B.C. to 2000 B.C. B) 2500 B.C. to 1500 B.C. C) 1000 B.C. to 2500 A.D. D) 2500 C.E. to 3500 A.D.