Cryptic (geology)
The Cryptic era is an informal term for the earliest geologic evolution of the Earth and Moon. It is the oldest (informal) era of the Hadean eon, and it is commonly accepted to have begun close to 4533 million (about 4.533 billion) years ago when the Earth and Moon formed. No samples exist to date the transition between the Cryptic era and the following Basin Groups era for the Moon (see also Pre-Nectarian), though sometimes it is stated that this era ended 4150 million years ago for one or both of these bodies. Neither this time period, nor any other Hadean subdivision, has been officially recognized by the International Commission on Stratigraphy.
Hurrians
By the 13th century BCE all of the Hurrian states had been vanquished by other peoples, with the Mitanni kingdom destroyed by Assyria. The heartlands of the Hurrians, the Khabur river valley and south eastern Anatolia, became provinces of the Middle Assyrian Empire (1366–1020 BCE) which came to rule much of the Near East and Asia Minor. It is not clear what happened to these early Hurrian people at the end of the Bronze Age. Some scholars have suggested that Hurrians lived on in the country of Nairi north of Assyria during the early Iron Age, before this too was conquered by Assyria. The Hurrian population of northern Syria in the following centuries seems to have given up their language in favor of the Assyrian dialect of Akkadian, and later, Aramaic.