From circa 1081 to circa 1180, the Komnenian army assured the Empire's security, enabling Byzantine civilisation to flourish.
The change in the distance amounts to circa 12% at the vicinity of the ruthenium.
Incidental Intelligence: An uptown antique shop called Circa 1900 has changed its name to Circa 1890.
Course: An Introduction to Western Civilisation: Ancient Civilisations from Prehistory to Circa AD 843.
The time machine was set to circa 1976 when Jet performed at Roseland on July 10.
(The largest example of such an instrument, the Pejeng Bulon of Bali, dates to circa 300 B.C).
However, the pH increased to circa 6 after treatment with CaCO3 suspension and circa 12 after introducing Ca(OH 2 solution.
Part 2 is marginally more civilized: we leap to "circa 1495" Edinburgh, where a Scottish and a Dutch warrior duel with two-handed swords before King James IV.
The Ebers Papyrus, an Egyptian medical papyrus of herbal knowledge dating to circa 1550 BC, recommended using thyme to reduce snoring.
It is preserved in a single manuscript that dates to circa 1000 and is known as the Beowulf manuscript (Cotton MS Vitellius A XV).
The collection spans the late nineteenth century to the early twenty-first century; the oldest class picture dates back to circa 1876.
