While the Umayyads and the Hashimites may have had bitterness between the two clans before Muhammad, the rivalry turned into a severe case of tribal animosity after the Battle of Badr.

While the causes of the 1692 witchcraft episode continue to be the subject of historical and sociological study, there is a consensus view that land disputes and perhaps economic rivalry among factions in Salem, Salem Village and Topsfield fueled animosity and played an underlying role.

In this modernized version, Sherlock exhibits smouldering animosity towards his brother which Dr. Watson characterizes as " sibling rivalry.

" Sibling rivalry " is a type of competition or animosity among brothers and sisters.

While many feuds in professional wrestling are entirely fictional, there have been successful feuds that actually originated from a real life rivalry and / or animosity between wrestlers.

Owing to business rivalry between the two leagues, especially in New York, and to personal animosity between Giants manager John McGraw and American League President Ban Johnson, the Giants declined to meet the champions of the " junior " or " minor " league.

Arthur seeks to forge an effective Celtic alliance in spite of religious differences, rivalry and sheer animosity among the leaders.

The historicity of this is dubious as other sources show great rivalry and animosity between the two.

Although competitive, the regional rivalry between the A's and Giants is considered a friendly one with mostly mutual companionship between the fans, as opposed to Cubs – White Sox, or Mets – Yankess games where animosity runs high.

After Macready " retired " to America, he continued to perform in the role ; in 1849, he was involved in a rivalry with American actor Edwin Forrest, whose partisans hissed Macready at Astor Place, leading to what is commonly called the Astor Place Riot.

The rivalry continued between both teams when Sal Alosi, then the strength and conditioning coach of the Jets, tripped Dolphins cornerback Nolan Carroll.

He assumed power in 1748 after the leaders of both factions had been killed in battle, but the rivalry continued, with the factionalization working in favor of the Iranians, who occupied Muscat and Sohar in 1743.

According to Consumer Reports, in the 1970s, the rivalry continued to heat up the market.

The personal rivalry between McClernand and Grant continued over Vicksburg, but ended when Grant removed McClernand from command after he issued, and arranged the publication of, a military order in contravention of Grant.

Whether in Asia, Central America or Africa, these conflicts, fueled by superpower rivalry and aggravated by socio-economic problems within the concerned countries, durale solutions continued to prove a massive challenge for the UNHCR.

Fox retained his own place, and though the two men continued to be of the same party, and afterward served again in the same government, there was henceforward a rivalry between them, which makes the celebrated opposition of their illustrious sons seem like an inherited quarrel.

After splitting the first two games, the Islanders defeated the more-established Rangers eleven seconds into overtime of the deciding game three, establishing a rivalry that continued to grow for years.

In The League of Extraordinary Gentlemen: Black Dossier, it is suggested that Jack Kerouac's Dean Moriarty ( from On the Road ) is his great-grandson, and the rivalry between the two criminals is continued by the fact that The Doctor's great-grandson is Kerouac's other creation, Doctor Sax.

The rivalry between Lancaster and York, in the form of the counties of Lancashire and Yorkshire, has continued into the present day, on a friendlier basis.

The rivalry between York and Lancaster, in the modern form of the counties of Yorkshire and Lancashire, has continued into the present day on a more friendly basis.

Relations with British Airways improved with the arrival of Rod Eddington as BA CEO, though rivalry continued.

This rivalry caused financial difficulties for both concert societies as RMS membership declined and the Free Music School continued to suffer from chronic money troubles.

The fathers continued to devote themselves to the subjugation of the Hussites, and they also intervened, in rivalry with the pope, in the negotiations between France and England which led to the treaty of Arras, concluded by Charles VII of France with the duke of Burgundy.

This rivalry continued even after the Aldus acquisition, because FreeHand was not included, but Adobe eventually acquired Freehand in 2005 with its acquisition of then-owner Macromedia.

Powell's continued rivalry with Charlie Parker, while essential to the production of brilliant music, was also the subject of disruptive feuding and bitterness on the bandstand, as a result of Powell's troubled mental and physical condition.

Making its theatrical debut on March 12, 1988, Char's Counterattack is the culmination of the original saga begun in Mobile Suit Gundam and continued through Mobile Suit Zeta Gundam and Mobile Suit Gundam Double Zeta, marking the final conflict of the fourteen-year rivalry between Char Aznable and Amuro Ray.

In the 20th century the rivalry between Newcastle and Chatham continued, expressed chiefly through sports, politics, and in competition for businesses and government largesse.

Phillips Academy is the oldest incorporated academy in the United States, established in 1778 by Samuel Phillips, Jr. Phillips's uncle founded Phillips Exeter Academy three years later, starting a rivalry that has continued through the centuries.

The issue of religious and political rivalry continued during the two Desmond Rebellions ( 1569 – 83 ) and the Nine Years ' War ( 1594 – 1603 ), both of which overlapped with the Anglo-Spanish War ( 1585 – 1604 ), during which some rebellious Irish nobles were helped by the Papacy and by Elizabeth's arch-enemy Philip II of Spain.

The antagonism of the rival parties continued, even after Gluck left Paris in 1780 ; and an attempt was afterwards made to inaugurate a new rivalry with Sacchini.

The 1983 season was mainly characterised by a high turnover of short-term characters and storylines, but continued the rivalry between Bea and the Freak.

This rivalry continued for several weeks and saw Mysterio defeating Booker's court member William Regal on an episode of SmackDown !, moments before attacking the challenger and hitting him with a 619 around the steel post.

Ambrogio Spinola continued the rivalry with the count of Tursi, then the chief of the Dorias.

Although Carolina first played Tampa Bay in 1995, their rivalry did not start until 2003, when DT Brentson Buckner claimed fellow DT Kris Jenkins was the best defensive tackle in football, angering Tampa Bay DT Warren Sapp.

However, this rivalry did not begin to grow until, when the Brewers moved from the American League Central Division to the NL Central.

Likely as a part of the rivalry between the Binet and the Wechsler, the Binet until 2003 chose to have 16 for one SD, causing considerable confusion.

The nature of this rivalry is ironic because while the Colts and Patriots were division rivals from 1970 to 2001, it did not become prominent in league circles until after Indianapolis was relocated to the AFC South.

Joe Namath and Johnny Unitas were the focal point of the rivalry at its beginning, but they did not meet for a full game until September 24, 1972.

The rivalry was relatively docile in its early years until 1966 when the Jets removed the Patriots, who had hopes of appearing in Super Bowl I, from playoff contention with a 38 – 28 defeat at Shea Stadium.

Known by their nicknames " Dizzy " and the " Grand Old Man ", their colourful, sometimes bitter, personal and political rivalry over the issues of their time – Imperialism vs. Anti-Imperialism, expansion of the franchise, labour reform, and Irish Home Rule – spanned almost twenty years until Disraeli's death in 1881.

With a reinforced garrison of 16, 000 men, the Austrians inflicted upon Suleiman his first defeat, sowing the seeds of a bitter Ottoman-Habsburg rivalry which lasted until the 20th century.

The rivalry between the New York Giants and the Brooklyn Dodgers, both of the National League, from their origins in the 1880s until both left the city after 1957 was not considered a Subway Series.

The trading of Adam Schneider and Sean Dempster, as well as the team being coached by the former assistant coach at Sydney, Ross Lyon, plus the fact that former Saints players Barry Hall, Tony Lockett and Peter Everitt had played for the Swans, have led to a much stronger rivalry between the clubs, with matches being dubbed " Ross versus Roos " ( from 2007 until 2010 ) by many commentators.

Falling under papal influence, Sardinia becomes the focus of the rivalry of Genoa and Pisa, comuni and Signorie, the Giudicati and the Crown of Aragon, which subsumed the island as the Kingdom of Sardinia in 1324, which was to last until 1718 when it was acquired by the House of Savoy, which later, in 1861, became the Kingdom of Italy and finally in 1946 the Italian Republic.

Ishbel Addyman claims that he was not a Gascogne aristocrat, but a descendant of Sardinian fishmonger, that the Bergerac appellation stemmed from a small estate near Paris where he was born, and not in Gascogne, that he suffered tertiary syphilis, and that around 1640 he became the lover of Charles Coypeau d ' Assoucy, a writer and musician, until around 1653, when they became engaged in a bitter rivalry.

The political rivalry between Jessica and Diana lasted until their deaths, with the other sisters in frequent contact.

He was not challenged further until stride specialist Donald Lambert initiated a half-serious rivalry with him.

A rivalry begins to develop between Murphy and her ex-husband, until one day another woman shows up with Bobby Jack's twin baby boys.

Serbia remained a principality or kneževina ( knjaževina ), until 1882 when it became a Kingdom, during which the internal politics revolved largely around dynastic rivalry between the Obrenović and Karađorđević families.

On the same day, Captain Douglas Haig of the 7th Hussars also entered the Staff College, albeit not by taking an exam, thus beginning a rivalry between the two that was to run until the First World War.

Although he lost the first 8 matches in January 1963, Laver later in the year began to turn around their rivalry, and until 1966, he had built a 38 – 21 lead.

Conference rivals until 1959, their rivalry football game, the " Battle of the Palouse ", was played on an annual basis from 1901 until 1978 when the NCAA Division I split.

When he was alive, he was the supreme Bio-Vizier of His Divine Shadow ( though remaining in rivalry with his teacher, Brizon ), until His Shadow exiled him to a barren snow-covered world.

The Coyotes had a long spirited intrastate rivalry with the South Dakota State Jackrabbits, until 2004 when SDSU moved to Division I athletics and the two schools stopped competing in major sports.

This was the start of a terrific rivalry as Ottawa and the Wanderers would split the championship between them from 1903 until 1911.

Amuro and Char Aznable faced off several times during the course of the One Year War, but it was not until when Lalah Sune was killed during one of their battles that this rivalry turned into a fierce hatred of one another.