- Parallelism (rhetoric) (Wikipedia)
Parallelism is a rhetorical device that compounds words or phrases that have equivalent meanings so as to create a definite pattern. This structure is particularly effective when “specifying or enumerating pairs or series of like things”. A scheme of balance, parallelism represents “one of the basic principles of grammar and rhetoric”.
- Tonian (Wikipedia)
The Tonian (from Ancient Greek: τόνος, romanized: tónos, meaning “stretch”) is the first geologic period of the Neoproterozoic Era. It lasted from 1000 to 720 Mya (million years ago). Instead of being based on stratigraphy, these dates are defined by the ICS based on radiometric chronometry. The Tonian is preceded by the Stenian Period of the Mesoproterozoic Era and followed by the Cryogenian.