Electronic Supplement Ð BSSA_D_12_00024 Table S1. Single Aliquot Regeneration Protocol for Optical Dating. 1. Preheat (200-240 ¡C) for 10 seconds (preheat range is specific to Cyprus samples) 2. OSL stimulation with blue light (470 nm) at 125 ¡C for 40 seconds (Ln) 3. Test dose beta irradiation 4. Cut heat (same temp as preheat) for 0 sec 5. OSL stimulation with blue light (470 nm) at 125 ¡C for 40 seconds (Tn) 6. Beta irradiation of regeneration dose 7. Preheat (200-240 ¡C) for 10 seconds 8. OSL stimulation with blue light (470 nm) at 125 ¡C for 40 seconds (Lx) 9. Test dose beta irradiation 10. Cut heat (same temp as preheat) for 0 sec 11. OSL stimulation with blue light (470 nm) at 125 ¡C for 40 seconds (Tx) 12. Repeat Steps 6-11 with further regeneration doses