The phrase "as the earliest source" is correct and usable in written English.
It can be used when referring to the first or original source of information or evidence in a discussion or analysis.
Example: "The manuscript was cited as the earliest source of the legend, providing valuable insights into its origins."
Alternatives: "as the first reference" or "as the original source".
Mr. Devine acknowledges his teacher at Pleasantville High School and Junior High School as the earliest source of his interest in the visual arts.
"If there is no law to the contrary, in the place where personal property is situated, it is deemed to follow the person of its owner, and is governed by the law of his domicile". The source notes of the North Dakota Century Code incorrectly cite to the Territorial Civil Code of 1877 as the earliest source of Dakota Territory's Field Code.
Not any time soon, but consider this: If China begins to move in the direction of California's standards, it could mean a global shift with serious consequences, just as California's leadership domestically was the early source of America's energy savings and fledgling green energy economy.
Mathematicians such as Theodorus of Cyrene (who is included in Iamblichus' catalogue) and Hippocrates of Chios (who is not) are not treated as Pythagoreans in the early sources such as Plato, Aristotle and Eudemus, and there is accordingly no good reason to call them Pythagoreans.
Volcanic lightning may supplant those as the main early source of fixed nitrogen, says atmospheric chemist Rafael NavarrofGonzalez of the National University of Mexico in Mexico City.
There are two major problems with depicting the P-Sp as an early source of the HSC lineage.
In vitro and in vivo experiments pointed to the endothelium as an early source of MMP-1 activity as E. coli endotoxin triggered release of endothelial MMP-1, which in turn activated PAR1-Rho-dependent cell contraction and barrier disruption in an autocrine manner.
Given Mizer's Greek-warrior fixation, it's tempting to think of him as one early source of the "body fascism" for which contemporary gay-male culture is often maligned.
The book is cited as an early source for words like "chapelled" ("adj. placed or stationed in a chapel"), "revirginize" ("trans. to render virginal again") and forty-seven others.
Although the text lacks literary polish, it is simple and direct, and, as the earliest Gospel, it is the primary source of information about the ministry of Jesus.
We then collected general information regarding the interventions (in order to assess whether the interventions fulfilled the selection criteria) from these contact persons via email, phone, or in person, as well as from the earlier identified information sources (e.g. websites, reports, key informants).
