- Proterozoic (Wikipedia)
The Proterozoic (IPA: /ˌproʊtərəˈzoʊɪk, ˌprɒt-, -əroʊ-, -trə-, -troʊ-/ PROH-tər-ə-ZOH-ik, PROT-, -ər-oh-, -trə-, -troh-) is the third of the four geologic eons of Earth’s history, spanning the time interval from 2500 to 538.8 Mya, the longest eon of the Earth’s geologic time scale. It is preceded by the Archean and followed by the Phanerozoic, and is the most recent part of the Precambrian “supereon”.
- Eridu (Wikipedia)
Eridu (Cuneiform: NUN.KI 𒉣𒆠; Sumerian: eridugki; Akkadian: irîtu) was a Sumerian city located at Tell Abu Shahrain (Arabic: تل أبو شهرين), also Abu Shahrein or Tell Abu Shahrayn, an archaeological site in southern Mesopotamia. It is located in Dhi Qar Governorate, Iraq near the modern city of Basra. Eridu is traditionally believed to be the earliest city in southern Mesopotamia based on the Sumerian King List.