Before this discovery, it is widely believed that bricks appeared about 3000 years ago in the Western Zhou dynasty since the earliest bricks were found in Western Zhou ruins.

Before Moseley's discovery, the atomic numbers ( or elemental number ) of an element had been thought of as a semi-arbitrary sequential number, based on the sequence of atomic masses, but modified somewhat where chemists found this to be desirable, such as by the great Russian chemist, Dimitri Ivanovich Mendeleev.

Before the actual discovery of mendelevium, the trivalent state was the most stable one in aqueous solution.

Before Leeuwenhoek's discovery of microorganisms in 1675, it had been a mystery why grapes could be turned into wine, milk into cheese, or why food would spoil.

( Before the discovery of quarks, the term " strong interaction " referred to just internucleon interactions.

Before the relatively recent discovery of neurons and their role in pain, various different body functions were proposed to account for pain.

Before the discovery of the ubiquitin proteasome system, protein degradation in cells was thought to rely mainly on lysosomes, membrane-bound organelles with acidic and protease-filled interiors that can degrade and then recycle exogenous proteins and aged or damaged organelles.

Before the discovery of radioactivity, uranium was primarily used in small amounts for yellow glass and pottery glazes, such as uranium glass and in Fiestaware.

Before the discovery of a live coelacanth specimen, the coelacanth time range was thought to have spanned from the Middle Devonian to the Upper Cretaceous period.

Before the discovery of refrigeration, many sushi connoisseurs were at risk of contracting diseases.

Before the discovery of quantum effects and other challenges to Newtonian physics, " uncertainty " was always a term that applied to the accuracy of human knowledge about causes and effects, and not to the causes and effects themselves.

Before announcing the discovery, the foundation first recruits as many of these people as it can.

Before Scheele made his discovery of oxygen, he studied air.

Before the synthesis of ununseptium, none of ununseptium's daughter isotopes were known ; thus, there was no basis for an JWP discovery claim, much less for its recognition.

Before the discovery of tetracycline and chloramphenicol during the latter 1940s, as many as 30 percent of persons infected with R. rickettsii died.

Before the discovery of antibiotics, pure mountain air was thought to be curative for patients with tuberculosis.

Before he reveals this discovery to the other Eternals, Harlan exacts a price, his lover is to be returned to him and both will go back to rescue Cooper.

Before the discovery of Mendelian genetics, one common hypothesis was blending inheritance.

Before the discovery of ribozymes, enzymes, which are defined as catalytic proteins, were the only known biological catalysts.

Before the discovery of iron and sulphur rich water, Harrogate comprised two hamlets, High Harrogate and Low Harrogate, close to the historic town of Knaresborough.

Before the discovery of magnetite in 1727, Kamaishi was little different from any of the other small fishing communities along the coast.

Before its discovery, the taxon was believed to have become extinct during the Miocene ; when it was discovered, it was heralded as a " living fossil ".

Before the discovery of Hyperion, the tallest redwood ever measured was the Dyerville Giant, also in Humboldt Redwoods State Park.

Before the discovery of America, the word Hart was common in surnames.

Before the Leopard it was equipped with the Centurion tank.

Before its destruction in 226 BC — due to an earthquake — the Colossus of Rhodes stood over 30 meters ( 107 ft ) high, making it one of the tallest statues of the ancient world.

Before construction resumed on the roof, tower height was scheduled to be so the building would hold the title of the world's tallest building ( structural top ) over the Taipei 101, but a height limit was imposed, allowing the roof to reach a maximum height of 492 m. Architect William Pedersen and developer Minoru Mori have resisted suggestions to add a spire that would surpass that of Taipei 101 and perhaps One World Trade Center, calling the Shanghai WFC a " broad-shouldered building ".

It was built in 1969 and was situated along NC 53 south of White Lake in Colly Township in Bladen County, North Carolina, USA at 34 ° 34 ' 44. 0 " N and 78 ° 26 ' 12. 0 " W. Before demolition, WECT Tower was, along with several other masts, the seventh tallest man-made structure ever created ; and was not only the tallest structure in North Carolina, but also the tallest in the United States east of the Mississippi River.

Before the construction of the chimney of Power Station Westerholt, it was the tallest structure of Northrhine-Westfalia.

Before the mention of Alemanni in the time of Caracalla, you would search in vain for Alemanni in the moderately detailed geography of southern Germany in Claudius Ptolemy, written in Greek in the mid-2nd century ; it is likely that at that time, the people who later used that name were known by other designations.

Before and during his political career, Disraeli was well known as a literary and social figure, although his novels are not generally regarded as a part of the Victorian literary canon.

Before that, and in some places thereafter, bikes were known primarily as velocipedes .< ref >

Before the thirteenth century, beer was flavoured with plants such as yarrow, wild rosemary, and bog myrtle, and other ingredients such as juniper berries, aniseed and ginger, which would be combined into a mixture known as gruit and used as hops are now used ; between the thirteenth and the sixteenth century, during which hops took over as the dominant flavouring, beer flavoured with gruit was known as ale, while beer flavoured with hops was known as beer.

Before the Norman conquest in 1066, justice was administered primarily by what is today known as the county courts ( the modern " counties " were referred to as " Shires " in pre-Norman times ), presided by the diocesan bishop and the sheriff, exercising both ecclesiastical and civil jurisdiction.

Before being released back into the river, the used water was held in large tanks known as retention basins for up to six hours.

Fire Bet: Before the shooter begins, some casinos will allow a bet known as a fire bet to be placed.

Before presenting " The Emancipation Proclamation " to his Cabinet, Lincoln read to them the latest episode, " Outrage in Utiky ", also known as High-Handed Outrage at Utica.

Chris Sarandon ( born July 24, 1942 ) is an American actor who is best known for playing Prince Humperdinck in the film The Princess Bride, the vampire Jerry Dandridge in Fright Night and Detective Mike Norris in the first entry of the Child's Play series, and providing the speaking voice of Jack Skellington from The Nightmare Before Christmas.

Before Delaware was settled by European colonists, the area was home to the Eastern Algonquian tribes known as the Unami Lenape or Delaware throughout the Delaware valley, and the Nanticoke along the rivers leading into the Chesapeake Bay.

Before becoming public, the movement was secretive and held closed meetings in what was known as Sessions of Wisdom.

Before the Israeli military occupied Sinai during the June 1967 War ( Arab-Israeli war, also known as the Six-Day War ), a single Egyptian governorate administered the whole peninsula.

Before his ascension to the Chrysanthemum Throne, his personal name ( imina ) is not clearly known, but he was known as Oshi-hiraki Toyosakura-hiko-no-mikoto.

Before his ascension to the Chrysanthemum Throne, his personal name ( his imina ) was Hatsusebe-shinnō, also known as Hatsusebe no Waka-sazaki.

Before his ascension to the throne, he was known as Prince Shikitsu-hiko Tamatemi.

Before 630 million years ago, boundaries on the geologic timescale are defined simply by reference to fixed dates, known as " Global Standard Stratigraphic Ages ".

Before the introduction of UTC on 1 January 1972 Greenwich Mean Time ( also known as Zulu time ) was the same as Universal Time ( UT ) which is a standard astronomical concept used in many technical fields.

In addition to conflicts between his Spanish and German inheritances, conflicts of religion would be another source of tension during the reign of Charles V. Before Charles even began his reign in the Holy Roman Empire, in 1517, Martin Luther initiated what would later be known as the Reformation.

Before 1820, Adams was best known as an exponent of American nationalism.

Before 1995 there were five known consistent superstring theories ( henceforth referred to as string theories ), which were given the names Type I string theory, Type IIA string theory, Type IIB string theory, heterotic SO ( 32 ) ( the HO string ) theory, and heterotic E < sub > 8 </ sub >× E < sub > 8 </ sub > ( the HE string ) theory.

Before approving the new constitution, the Constitutional Convention specified the name by which the body politic would be known.

Before that date, the only papyri known were a few surviving from medieval times.