Random triples
| Subject | Object |
|---|---|
| gptkb:Nauwalabila_I | about 50,000 years ago |
| gptkb:Kalambo_Falls_Prehistoric_Site | over 250,000 years ago |
| gptkb:Cooper's_Ferry | ~16,000 years ago |
| gptkb:Meadowcroft_Rockshelter_excavations | circa 16,000 years ago |
| gptkb:Kalambo_Falls_archaeological_site | over 400,000 years ago |