At the height of the first snowstorm we had, it was impossible for me to get medical attention needed during an emergency.

At the present time we do not know by what biochemical mechanism TSH acts on the thyroid, but for bio-assay of the hormone there are a number of properties by which its activity may be estimated, including release of iodine from the thyroid, increase in thyroid weight, increase in mean height of the follicular cells and increase in the thyroidal uptake of Af.

At the height of the French Revolution, he was accused by Jean-Paul Marat of selling adulterated tobacco, and of other crimes and was eventually guillotined a year after Marat's death.

* At the height of his career, Carnegie was the second-richest person in the world, behind only John D. Rockefeller of Standard Oil.

At the height of their popularity the band consisted of singer Jimmy Somerville backed by Steve Bronski and Larry Steinbachek, both of whom played keyboards and percussion.

At the height of the rainy season, the front may reach as far as Kanem Prefecture.

At this point, the water pushes northward up the Tonle Sab and empties into the Tonle Sap, thereby increasing the size of the lake from about 2, 590 square kilometers to about 24, 605 square kilometers at the height of the flooding.

At the height of the boom, it was possible for a promising dot-com to make an initial public offering ( IPO ) of its stock and raise a substantial amount of money even though it had never made a profit — or, in some cases, earned any revenue whatsoever.

At its pre-war height, the movement often pursued pseudoscientific notions of racial supremacy and purity.

At their greatest height they reach an elevation of about, the highest point in southern Finland.

At the party's height it boasted 3, 000 cumainn, an average of 75 per constituency.

" At the height of his fame on Diff ' rent Strokes, he earned as much as US $ 100, 000 per episode.

At their height, the Assyrians dominated all of Syria-Palestine, Egypt, and Babylonia.

At its height, the British Empire covered a quarter of the Earth's land area and comprised a quarter of its population.

At the height of its popularity, an entire year's worth of shows would be taped in two separate week-long sessions, then individual shows would be assembled from edited sections.

At the height of the inflation, one US dollar was worth 4 trillion German marks.

At the height of his popularity as a director, Whale directed The Road Back, a sequel to All Quiet on the Western Front, in 1937.

At the height of her career, she was known as " The Queen of Rock and Roll " as well as " The Queen of Psychedelic Soul ", and became known as Pearl amongst her friends.

At first the kingdom was little more than a loose collection of towns and cities captured during the crusade, but at its height in the mid-12th century the kingdom roughly encompassed the territory of modern-day Israel, Lebanon and Palestine.

At its height it encompassed an area covering not only much of Chad, but also parts of modern southern Libya, eastern Niger, northeastern Nigeria and northern Cameroon.

At the height of the strikes, nearly 30, 000, 000 working days were lost in Britain during 1979, but that had fallen dramatically to some 5, 000, 000 during 1981 as a result of the Thatcher government's union reform policies.

At its highest point, it reaches a height of 1, 834 feet ( 559 m ).

At its height Cahokia is believed to have had a population of between 40, 000 and 80, 000 people, making it amongst the largest pre-Columbian cities of the Americas.

At the height of Viking expansion into Dublin and Jorvik 875-954 AD the longship reached a peak of development such as the Gokstad ship 890.

At least one of his works was influenced by the Persian invasion of Greece, which took place during his lifetime.

At his own request Nehemiah is sent to Jerusalem as governor of Yehud, the official Persian name for Judah.

At its simplest and broadest level of meaning, The Histories is structured as a dynastic history of four Persian kings:

At Lade the Chian fleet continued doggedly fighting the Persian fleet even after the defection of the Samians and others but ultimately the Chians were forced to retreat and were again subject to Persian domination.

At a young age his mother paid a lot of attention to his education, as a result of this Osman II was a known poet and had mastered many languages, including Arabic, Persian, Greek, Latin, Italian, and the court sign language.

At one time, Qataris owned nearly one-third of the Persian Gulf fishing fleet.

At this time poets such as Ferdowsi ( who glorified the pre-Islamic Iran and patriotism ), Hafiz ( with his Epicurean view on life ) and Khayyam ( with openly agnostic themed poetry ) had already found their roots among Iranian culture and their works were looked upon as masterpieces of Persian literature.

At the end of the Persian era in 351 BCE, it was invaded by the emperor Artaxerxes III and then by Alexander the Great in 333 BCE when the Hellenistic era of Sidon began.

At the same time there has been a tendency to bring the origins of the Pentateuch further forward in time, and the most recent proposals place it in 5th century Judah under the Persian empire.

At the decisive Battle of Plataea, the Allies destroyed the Persian army, whilst apparently on the same day, the Allied navy destroyed the remnants of the Persian fleet at the Battle of Mycale.

At that time the Persian governor Badhan was ruling.

At least 850, 000 Yemenis returned from Saudi Arabia and the Persian Gulf.

* At Halicarnassus, Alexander successfully undertakes the first of many sieges, eventually forcing his opponents, the mercenary captain Memnon of Rhodes and the Persian satrap of Caria, Orontobates, to withdraw by sea.

At this time, Bahrain incorporated the southern Sassanid province covering the Persian Gulf's southern shore plus the archipelago of Bahrain.

* At the court of Ardashir I, Mani, a young mystic of Ctesiphon, proclaims himself a prophet and preaches his doctrine, Manichaeism, throughout the Persian Empire.

At the Battle of Thermopylae, a small force of Greek warriors led by King Leonidas of Sparta resisted the much larger Persian forces, but were ultimately defeated.

At the ensuing Battle of Marathon, the Athenians won a remarkable victory, which resulted in the withdrawal of the Persian army to Asia.

At around the same time, it was discussed in Persia ( Iran ) by the Persian mathematician, Al-Karaji ( 953 – 1029 ).

At the age of fourteen Young had learned Greek and Latin and was acquainted with French, Italian, Hebrew, German, Chaldean, Syriac, Samaritan, Arabic, Persian, Turkish and Amharic.

At this time Iran found itself very isolated, but this was a secondary consideration to the spread of revolutionary ideals across the Persian Gulf and confrontation with the US ( or " Great Satan ") in the hostage crisis.

* At a Pan-Hellenic Conference in Corinth, Philip II of Macedon announces the formation of the League of Corinth to liberate the Greek cities of Asia Minor from Persian rule, ostensibly because the Persian King, Arses, refuses to make reparations to Philip for Artaxerxes III's aid to the city of Perinthus when it was resisting Philip.