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A compact diagram of the Trinity, known as the "Shield of the Trinity" consisting of God the Father, God the Son (Jesus), and God the Holy Spirit (the Shield is generally not intended to be a schematic diagram of the structure of God, but it presents a series of statements about the correlation between the persons of the Trinity)
The precise origin of this diagram is unknown, but it was evidently influenced by 12th-century experiments in symbolizing the Trinity in abstract visual form—mainly by Petrus Alfonsi's Tetragrammaton-Trinity diagram of c. 1109, and possibly also by Joachim of Fiore's different Tetragrammaton-Trinity diagram of three circles, which led to the ...
Petrus Alphonsi was born at an unknown date and place in the 11th century in Spain, and educated in al-Andalus, or Islamic Spain.As he described himself, he was baptised at Huesca, capital of the Kingdom of Aragon, on St. Peter's Day, 29 June 1106, when he was probably approaching middle age; this is the first clear date we have in his biography.
Edward Hitchcock's fold-out paleontological chart in his 1840 Elementary Geology. Although tree-like diagrams have long been used to organise knowledge, and although branching diagrams known as claves ("keys") were omnipresent in eighteenth-century natural history, it appears that the earliest tree diagram of natural order was the 1801 "Arbre botanique" (Botanical Tree) of the French ...
Evolutionary thought, the recognition that species change over time and the perceived understanding of how such processes work, has roots in antiquity. With the beginnings of modern biological taxonomy in the late 17th century, two opposed ideas influenced Western biological thinking: essentialism, the belief that every species has essential characteristics that are unalterable, a concept ...
The earliest evidence for life on Earth includes: 3.8 billion-year-old biogenic hematite in a banded iron formation of the Nuvvuagittuq Greenstone Belt in Canada; [30] graphite in 3.7 billion-year-old metasedimentary rocks in western Greenland; [31] and microbial mat fossils in 3.48 billion-year-old sandstone in Western Australia.
Various trees of life are recounted in folklore, culture and fiction, often relating to immortality or fertility.They had their origin in religious symbolism. According to professor Elvyra Usačiovaitė, a "typical" imagery preserved in ancient iconography is that of two symmetrical figures facing each other, with a tree standing in the middle.
In biology, a biological life cycle (or just life cycle when the biological context is clear) is a series of stages of the life of an organism, that begins as a zygote, often in an egg, and concludes as an adult that reproduces, producing an offspring in the form of a new zygote which then itself goes through the same series of stages, the ...