While empirical investigations of the natural world have been described since classical antiquity ( for example, by Thales, Aristotle, and others ), and scientific methods have been employed since the Middle Ages ( for example, by Ibn al-Haytham, Abū Rayhān al-Bīrūnī and Roger Bacon ), the dawn of modern science is generally traced back to the early modern period, during what is known as the Scientific Revolution that took place in 16th and 17th century Europe.

While in Baghdad, Ibn ʿAbd al-Wahhab married an affluent woman.

" While he was besieging the city of Acre, Godfrey, the ruler of Jerusalem, was struck by an arrow, which killed him ", reports the Arab chronicler Ibn al-Qalanisi.

While the AlDossary families led by Sheikh Ahmed Ibn Abdullah ibn Hassan Al Dossary migrated from Bahrain and were given the chance to choose a land where to settle by HRM the late King Abdul Aziz.

While the Al Rasheed rallied the majority of other tribes to their side the effort proved futile, and by 1921 Ha ' il was captured and given to Ibn Saud's army by the British command.

While there he joined a ( possible ) former roommate named Majed Moqed in training for al-Qaida at Khalden, a large training facility near Kabul that was run by Ibn al-Shaykh al-Libi.

While previous Maragha school models were just as accurate as the Ptolemaic model, Ibn al-Shatir's geometrical model was the first that was actually superior to the Ptolemaic model in terms of its better agreement with both contemporary theory and empirical observations.

While Baydara al-Mansuri became the new Vice-Sultan, Hosam ad-Din Lajin became the deputy of the Sultan in Syria and Ibn al-Salus was granted the post of vizier.

While Al-Ashraf was rough on the Emirs, he was very generous towards Ibn al-Salus who did not treat the Emirs with respect.

While those outside the school of thought often point to Dawud Al-Zahiri as the " founder " of the school, followers of the school themselves tend to look to earlier figures such as Sufyan al-Thawri and Ishaq Ibn Rahwayh as the forerunners of Zahiri principles.

While Ubayd Allah was in Syria, he persuaded Marwan ibn al-Hakam not to recognise Ibn al-Zubayr.

While there, Ibn Battuta recorded a substantial description of life at the court, including complaints about Suleyman's miserliness, a sharp contrast to Suleyman's famously generous brother Kankan Musa.

While Miss Marple is described as ' an old lady ' in many of the stories, her age is mentioned in " At Bertram's Hotel ", where it is said she visited the hotel when she was 14 and almost 60 years have passed since then.

While entrance to the Park is free, Gaudí's house, " la Torre Rosa ," — containing furniture that he designed — can be only visited for an entrance fee.

While in India, Hasan Ali Shah continued his close relationship with the British, and was even visited by the Prince of Wales when the future King Edward VII was on a state visit to India.

While in London he visited the Central London District School of his childhood, somewhere he had avoided on the 1921 trip, and found it an emotional experience.

While the island has probably been sighted by navigators since at least the 16th century, it takes its name from the British ship Europa, which visited it in December 1774.

While Amerindians from Patagonia could have visited the Falklands, the islands were uninhabited when discovered by Europeans.

While spending most of his time in the provinces of the Rhine area ( Germania Inferior, Germania Superior, Raetia, Noricum ), it is almost certain that, during 253 to 258, Gallienus visited the Danube area and Illyricum.

While renting a house there, he spent time hunting, but regularly visited Lucca.

While in Quanzhou he ascended the " Mount of the Hermit " and briefly visited a well-known Taoist monk.

While chairman, Jobs visited university departments and faculty members to sell Macintosh.

While inspecting the earthquake damage during a 28 April 2009 visit to the Aquila, Pope Benedict XVI visited Celestine's remains in the badly damaged Santa Maria di Collemaggio and left the woolen pallium he wore during his papal inauguration in April 2005 on his glass casket as a gift.

While his father visited his lands from Scotland to France, Richard probably stayed in England.

While in Sitka, President Harding visited and shook hands with Alaskan Native Tlingit elder chief Katlean outside in a crowd of people.

While in port, Harding reviewed the U. S. naval fleet and visited the Bell Street Pier.

While museums like Mount Vernon and Colonial Williamsburg were visited by over one million tourists a year, more than fifty percent of historic house museums received less than 5, 000 visitors per year.

While in Chicago he visited the American Negro Exhibition with Langston Hughes, Arna Bontemps and Claude McKay.

While in Italy, Eudoxus visited Sicily, where he studied medicine with Philiston.

While the members of that first expedition of the Mariposa Battalion had heard rumours of what could be found up the Merced River, none were prepared for what they saw March 27, 1851 from what is now called Old Inspiration Point ( close to the better visited Tunnel View ).

While numerous artists visited the Stein salon, many of these artists were not represented among the paintings on the walls at 27 Rue de Fleurus.

While there, he often visited the nearby engineering works of William Ramshaw.

While numerous artists visited the Stein salon, many of these artists were not represented among the paintings on the walls at 27 Rue de Fleurus.

While not directly contributing ( though many sites offer additional ways of support ), visitors are making a difference in the sense that, had they not visited, no donation would have been given.

While on the Braddock expedition years earlier, Boone had heard about the fertile land and abundant game of Kentucky from fellow wagoner John Finley, who had visited Kentucky to trade with American Indians.

While serving Theophilitzes, he visited the city of Patras, where he gained the favor of Danielis, a wealthy woman who took him into her household and endowed him with a fortune.

While dictatorial regimes can preempt opposition nationalist or socialist campaigns by closing down their networks and headquarters, the centre for Islamist political organizing is the mosque.

While there are several rules, such as those regarding not allowing shoes in the prayer hall, that are universal, there are many other rules that are dealt with and enforced in a variety of ways from mosque to mosque.

While sharing an apartment with his cousin, he reportedly attended discos and beach parties, and his attendance at the mosque fell off.

While he admitted that the installation of the idols may have been " an illegal act ", Nayar refused to remove them from the mosque claiming that " the depth of feeling behind the movement ... should not be underestimated.

While still used as a mosque, the Sultan Ahmed Mosque has also become a popular tourist attraction.

While the two palaces built by Alaeddin Keykubad I carry the names Kubadabad Palace and Keykubadiye Palace, he named his mosque in Konya as Alaeddin Mosque and the port city of Alanya he had captured as " Alaiye ".

While the local population claimed that Americans had fired a missile at the mosque, U. S. forces claimed that it was an accidental detonation by insurgents constructing bombs.

While no historic Hindu structures remain intact, the " great mosque ", constructed by Ibrahim Shah of Jaunpur in 1406 still remains.

While the masjid ( literally: the place of a Muslim's sujood or prostration to God ) or mosque ( in English ) is the term used by the Qur ' an to denote the primary space of salaat ( communal Muslim prayers ), a range of spaces for Islamic communal purposes can be currently found throughout the Muslim world.

While K C Sudarshan said this, again after two days, RSS, the mother organization of Bharatiya Janata Party, on Tuesday owned the Ayodhya movement but refused to apologise about what happened in Ayodhya in 1992 which led to demolition of the Babri mosque.

While on tour to promote his translation, Ali helped to open the Al-Rashid Mosque, the third mosque in North America, in Edmonton, Alberta, Canada, in December 1938 .< ref >

While still a prisoner, he had vowed that if he were ever released, he would someday destroy the dungeon, and build a mosque in its place.

While the bride-to-be celebrates with her friends, the groom goes to the mosque to validate the marriage.

While several of Fadlallah's bodyguards were killed in the attack, the cleric escaped injury as he was attending Friday prayers at a nearby mosque.

While conventional mosques were limited by a segmented interior, Sinan's effort at Edirne was a structure that made it possible to see the mihrab from any location within the mosque.