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 remainder of Farmington Township incorporated as the city of Farmington Hills, there were two other incorporated entities within the boundaries.

Before starting to play, the players may go over the track, agreeing in advance about each grid point near the boundaries as to whether that point is inside or outside the track.

Before leaving the landfill boundaries, the waste collection vehicles pass through a wheel cleaning facility.

Before 1983, the town was within the boundaries of the UK Parliamentary constituency of Eton and Slough.

Before the war, Stalin did not attempt to push Soviet boundaries beyond their full Tsarist extent.

Before 1999, Qikiqtaaluk Region existed under slightly different boundaries as the Baffin Region, District of Keewatin, Northwest Territories.

Before 1999, Kivalliq Region existed under slightly different boundaries as Keewatin Region, Northwest Territories.

Before 1999, Kitikmeot Region existed under slightly different boundaries as Kitikmeot Region, Northwest Territories.

Before the advent of colonialism, the Luhya, just as most other ethnic groups in Africa, defined their boundaries based on occupation of territory by a community of peoples with similar language, cultural traditions or under leadership of a particular ruler or king.

Before the 2003 – 2004 redefinition of metropolitan boundaries, the Portland Consolidated Metropolitan Area included the Salem Metropolitan Statistical Area.

Before the 2008 general election the electorate boundaries were changed and it was renamed Hauraki-Waikato.

Before the 1997 election, the boundaries were redrawn and part of the neighbouring area of Sale included in the seat.

Before 1983, a constituency with similar boundaries was called Woolwich West.

Before the Reform Act of 1832, the right to vote was exercised by all freemen and burgesses of the town ( whether or not they lived within the borough boundaries ) and by all householders who were not receiving alms.

Before this Cronton was a township and civil parish, part of the Ecclesiastical Parish of Prescot in West Derby Hundred within the historic county boundaries of Lancashire.

Before a category starts, a competitor will mark the box by flying along its boundaries at its floor.

Before the Civil War, Carnegie arranged a merger between Woodruff's company and that of George M. Pullman, the inventor of a sleeping car for first class travel which facilitated business travel at distances over.

In his Rudolphine Tables ( 1627 ), Johannes Kepler used a prototype of year zero which he labeled Christi ( Christ ) between years labeled Ante Christum ( Before Christ ) and Post Christum ( After Christ ) on the mean motion tables for the Sun, Moon, Saturn, Jupiter, Mars, Venus and Mercury.

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 party has even begun rumors of an adulterous relationship between Ashley and Scarlett have started, and Rhett and Melanie have heard the gossip.

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 the Congress opened on 13 June, negotiations between Andrássy and the British Foreign Secretary Marquess of Salisbury had already " ended on 6 June by Britain agreeing to all the Austrian proposals relative to Bosnia-Herzegovina about to come before the congress while Austria would support British demands.

Before the Industrial Revolution, the workday varied between 11 and 14 hours.

Before he could reach his destination though, David drowned at sea sometime between 1169 – 1170.

Before the Christian era, sodomy was not illegal in Greek or, most believe, in Roman law, between adult citizens, but homosexual acts between citizens were considered acceptable only under certain social circumstances.

Before embarking on a conflict of law analysis, the court must determine whether a property agreement governs the relationship between the parties.

Before his elevation to the Roman episcopacy, a difference in dating the celebration of the Christian Passover / Easter between Rome and the bishops of Asia Minor had been tolerated by both the Roman and Eastern churches.

* Before copulation, intrasexual selection-usually between males-may take the form of male-to-male combat.

Before that time the region between the Vaal and Limpopo was scarcely known to Europeans, but in 1829, Mzilikazi was visited at Mosega by Robert Moffat, and between that date and 1836 a few British traders and explorers visited the country and made known its principal features.

Before the Minoan eruption, the caldera formed a nearly continuous ring with the only entrance between the tiny island of Aspronisi and Thera ; the eruption destroyed the sections of the ring between Aspronisi and Therasia, and between Therasia and Thera, creating two new channels.

Before serving two terms as Berkeley's Mayor, Dean served on the Berkeley City Council for 15 years between 1975 and 1994 and was a leader of the Berkeley Democratic Club.

Before the canal's opening in 1869 goods were sometimes offloaded from ships and carried overland between the Mediterranean and the Red Sea.

Before about 1500, the network of communication between cultures was that of Eurasia.

Before division can occur, the genomic information that is stored in chromosomes must be replicated, and the duplicated genome must be separated cleanly between cells.

Before John XXII's election a contest had begun for the imperial crown between Louis IV of Bavaria and his opponent, Frederick I of Austria.

Before he became king, he was also the Sovereign Prince of Pontecorvo, in Southern Italy, between 1806 and 1810.

* Shipley, David E. Due Process Rights Before EU Agencies: The Rights of Defense Article discussing the procedural safeguards that have been recognized in the EU and the parallels between procedural due process in the United States and the rights of defense in the EU.

Before memory, too, clouds over, let us make a note or two of what could be seen.

Before his death in Herat, on June 9, 1863, Dost Mohammad Khan had nominated as his successor Sher Ali Khan, his third son, passing over the two elder brothers, Afzal Khan and Azam Khan.

It ran for 63 performances and was followed two years later by The Day Before Spring.

Before leaving, he met Milton Caniff, and the two became lifelong friends.

Before a bodhisattva arrives at the first ground, he or she first must travel the first two of the five paths:

# Before fading in the new track, check that the beats of two tracks match by listening to both channels together in the headphones, as the sound from the speakers can reach you with a delay.

Before November 2001 The World Factbook website was updated yearly ; from 2004 to 2010 it was updated every two weeks ; since 2010 it has been updated weekly.

Before 1873, England had two parallel court systems: courts of " law " that could only award money damages and recognized only the legal owner of property, and courts of " equity " ( courts of chancery ) that could issue injunctive relief ( that is, a court order to a party to do something, give something to someone, or stop doing something ) and recognized trusts of property.

Before Young, only two pitchers had thrown perfect games.

Before the revolution Mubarak tolerated limited political activity by the Brotherhood for his first two terms, but then moved more aggressively to block its influence ( arguably leading to its recent rise in public support ).

Before the 20th century, jewelers used the term water as in " a gem of the finest water " to express the combination of two qualities, color and crystal.

Before D. W. Griffith started directing at Biograph in May 1908, he had seen the two Pathé films just mentioned, and a number of Vitagraph films as well.

Before he was forced abroad for political reasons, director Jules Dassin made two classic noirs that also straddled the major / independent line: Brute Force ( 1947 ) and the influential documentary-style The Naked City were developed by producer Mark Hellinger, who had an " inside / outside " contract with Universal similar to Wanger's.

Before a cell divides, the DNA is copied, so that each of the resulting two cells will inherit the DNA sequence.

Before that, in two separate experiments, Frederick Griffith and Oswald Avery, Colin MacLeod, and Maclyn McCarty had shown that DNA led to the transformation of one strain of Streptococcus pneumoniae to another that was more virulent.

Before the Test series started he scored consecutive centuries against Tasmania and Australia A these were his first in two years.

Before the revelation of Sheldon's identity, Tiptree was often referred to as an unusually macho male ( see, e. g., Robert Silverberg's commentaries ) as well as an unusually feminist science fiction writer ( for a male ) — particularly for " The Women Men Don't See ", a story of two women who go looking for aliens to escape from male-dominated society on Earth.

Before kick-off, Liverpool fans breached a fence which separated the two groups of supporters, and charged the Juventus fans.

Before a battle the sarissa were carried in two pieces and then slid together when they were being used.

Before leaving Prestige, however, Davis had to fulfill his obligations during two days of recording sessions in 1956.

Before Digital Command Control became available, this was one way of controlling two trains separately on the same track.

Before long, the Giants were 6 – 2, but lost two straight to division foes: to the Cowboys 33 – 20 at home, and to the Eagles on the road, putting the G-Men in 2nd place in the NFC East at 6 – 4.

Before the introduction of the term paraphilia in the DSM-III ( 1980 ), the term sexual deviation was used to refer to paraphilias in the first two editions of the manual.

Before the two substances are mixed, they are separately cleaned of foreign matter and dried in a manner that creates large square cakes.

Before the emergence of the T-formation in the 1940s, all members of the offensive backfield were legitimate threats to run or pass the ball, and most teams used four offensive backs on every play: a quarterback, two halfbacks, and a fullback.