The dates given here stem from the Mahavamsa’s assertion that Asoka's accession to the throne was 218 years after the Parinibbana (quoted BDPPN). This was approximately 270 B.C. (EB.2.180).
| Buddha’s Parinibbana | 488 B.C. | B.E.1 |
| First council (Venerables Kassapa, Upali, Ananda and 500 monks) | 488 B.C. | B.E.1 |
| Second council (Venerables Sabbakamin, Revata, and 700 monks) (CV) | 388 B.C. | B.E.101 |
| Abhidhamma appears (Dhammasangani) (BPE, intro p25) | 375 B.C. | B.E.114 |
| Major schism (Mahasanghika and Sthavira) (BV, intro pviii) | 340 B.C. | B.E.149 |
| Asoka’s accession (EB.2.180) | 270 B.C. | B.E.219 |
| Third council (Asoka’s reign 17th year) (HB p262) | 253 B.C. | B.E.236 |
| Mahinda (12 vassas) to Sri Lanka (BDPPN) | 253 B.C. | B.E.236 |
| Abhidhamma completed (Kathavatthu) (BPE, intro p24) | 250 B.C. | B.E.239 |
| Dutthagamani's reign: founds the Maha Thupa, Anuradhapura (BDPPN) | 101-77BC | B.E.388-412 |
| Vattagamani's reign: founds Abhayagiri Monastery and fourth council (BDPPN) | 29-17 BC | B.E.460-472 |