During the Achaemenid Persian Empire, around 600 BC the Persians first began to use the abacus.

During the period of the Achaemenid Empire ( ca.

During the Achaemenid period, Sogdiana and Bactria were part of the Persian empire.

During the Achaemenid period, Khwarezm was governed by Smerdis / Bardiya along with Bactriana, Carmania, and the other eastern provinces of the empire.

During the late Achaemenid era, adar — as the quintessence of the Yazata Adar — was incorporated in the Zoroastrian hierarchy of angels.

During the post-Phoenician era of the eighth century a palace was erected and a port was also constructed, which served the trade with the Greeks and the Levantines.

During the more recent Modern era and in the Post-Modern period the artillery crew has used wheeled or tracked vehicles as a mode of transportation.

During ancient times Aegina was a rival to Athens, the great sea power of the era.

During the Weimar era, Berlin became internationally renowned as a center of cultural transformation, at the heart of the Roaring Twenties.

During the Communist era, the army members enjoyed extensive social privileges.

During the 19th century the Liberal Party was broadly in favour of what would today be called classical liberalism: supporting laissez-faire economic policies such as free trade and minimal government interference in the economy ( this doctrine was usually termed ' Gladstonian Liberalism ' after the Victorian era Liberal Prime Minister William Ewart Gladstone ).

During the era of McCarthyism, Chaplin was accused of " un-American activities " as a suspected communist.

During Mozi's era, war and famines were common, and population growth was seen as a moral necessity for a harmonious society.

During this brief era, when China was in all respects a multi-state system, five regimes rapidly succeeded one another in control of the old Imperial heartland in northern China.

During the era after the war, later called the Pax Mongolica, adventurous Westerners such as Marco Polo travelled all the way to China and brought the first reports of its wonders to Europe.

During this era, Chinese scholars attempted to incorporate Western philosophical ideologies such as democracy, Marxism, socialism, liberalism, republicanism, and nationalism into Chinese philosophy.

During the early computer era, Chinese characters were categorized by their radicals or Pinyin ( or romanization ), but results weren't completely satisfactory.

During this era, the Cottage was used for choir singing and marching bands along with other performances, and Mass.

During the 1930-60's era, Fulham often averaged over 45, 000.

During this period, which has become known as baseball's dead-ball era, Cub infielders Joe Tinker, Johnny Evers, and Frank Chance were made famous as a double-play combination by Franklin P. Adams ' poem Baseball's Sad Lexicon.

During the era Kingdom of Serbia, six censuses were conducted starting on 1884 and the last one being in 1910.

During this era, public authorities in Massachusetts dealt with the threat primarily by means of quarantine.

During the classical era of Buddhist philosophy in India, philosophers such as Dharmakirti argue for a dualism between states of consciousness and Buddhist atoms ( the basic building blocks that make up reality ), according to " the standard interpretation " of Dharmakirti's Buddhist metaphysics.

During the plantation era, Diego Garcia was home to large herds of Sicilian Donkeys ( Equus asinus ), dozens of horses ( Equus caballus ), hundreds of dogs ( Canis familiaris ) and house cats ( Felis catus ).

During the Cold War era, the United States was keen to establish a military base in the Indian Ocean to counter Soviet influence in the region and protect the sea-lanes for oil transportation from the Middle East.

During this dark era in franchise history, the team was derisively known as the " Dead Wings " or " Dead Things ".

During Mozi's era, war and famines were common, and population growth was seen as a moral necessity for a harmonious society.

During the second era ( 7th – 9th editions, 1827 – 1901 ), the Britannica was managed by the Edinburgh publishing firm, A & C Black.

During this period and into the Jacobean era that followed, the English theatre reached its highest peaks.

During the Perestroika era, The Law on the Status of the Estonian Language was adopted in January 1989.

During World War I, the Armenian Genocide, the Greek genocide ( especially in Pontus ), and the Assyrian Genocide almost entirely removed the ancient communities of Armenian and Assyrian populations in Anatolia, as well as a large part of its ethnic Greek population.

During the next three years, Alexander seemed to renew his attempts to subdue the states of Thessaly, especially Magnesia and Phthiotis, for upon the expiry of the truce, in 364 BC, they again applied to Thebes for protection from him.

During World War II and for many years afterward, Capp worked tirelessly going to hospitals to entertain patients, especially to cheer recent amputees and explain to them that the loss of a limb did not mean an end to a happy and productive life.

During Lent, capybara meat is especially popular in parts of South America, especially in Venezuela, as the Catholic Church, in a special dispensation, is claimed to have allowed eating capybara meat when meat consumption was otherwise not allowed.

During the 1880s, five foreign editions contained two revelations to John Taylor that were received in 1882 and 1883 ; these revelations " set in order " the priesthood, gave more clarification about the roles of priesthood offices — especially the Seventy — and required Priesthood leaders to live plural marriage in order to qualify to hold their church positions.

During this stage a dispute occurred between ad-Darazi and Hamza bin Ali mainly concerning ad-Darazi's ghuluww ( Arabic, " exaggeration "), which refers to the belief that God was incarnated in human beings, especially ' Ali and his descendants, including Al-Hakim bi-Amr Allah who was the current Caliph, and ad-Darazi naming himself " The Sword of the Faith " which led Hamza to write an epistle refuting the need for the sword to spread the faith and several epistles refuting the beliefs of the ghulat.

" During the Russo-Japanese War in 1904, the commander of the torpedo boat destroyer IJN Akatsuki described " being in command of a destroyer for a long period, especially in wartime ... is not very good for the health.

During the War of 1812, the Detroit River served as a major barrier between the American Michigan Territory and British Upper Canada, especially during the Battle of Fort Detroit in August 1812, when Detroit briefly fell to the British.

During the loss period the companies relied on venture capital and especially initial public offerings of stock to pay their expenses while having no source of income at all.

During her imprisonment, Eleanor had become more and more distant with her sons, especially Richard ( who had always been her favorite ).

During the school year, the pregnant woman and senior citizens need to manage to find a place because these buses are always full, especially on market days.

During the 19th century, especially in Germany, many coats of arms were designed to depict a natural landscape, including several charges tinctured " proper " ( i. e. the way they appear in nature ).

During the Qianlong reign period and the continuing 19th century, European Baroque styles of painting had noticeable influence on Chinese portrait paintings, especially with painted visual effects of lighting and shading.

During the 17th century, the basic tenets of the Grotian or eclectic school, especially the doctrines of legal equality, territorial sovereignty, and independence of states, became the fundamental principles of the European political and legal system and were enshrined in the 1648 Peace of Westphalia.

During his lifetime, Agricola wrote a number of Italian operas, as well as Lieder, chorale preludes, various other keyboard pieces and church music, especially oratorios and cantatas.

During seven or eight years he used his increasing favour with the elector to relieve the distress of the refugees from France, and especially from his native province of Béarn.

During the sojourns at Antioch and Constantinople he was mainly occupied with the Arian controversy, and especially with the schisms centering around Meletius of Antioch and Lucifer Calaritanus.

During his talks with the Spanish foreign minister, Ramón Serrano Súñer, Ribbentrop affronted Súñer with his tactless behaviour, especially his suggestion that Spain cede the Canary Islands to Germany.

During the Edo period ( 1603 – 1867 AD ), the sleeves began to grow in length, especially among unmarried women, and the Obi became wider, with various styles of tying coming into fashion.

During this time Kashmiri shawls became known world wide, attracting many buyers especially in the west.

During the 1980s, the United States forged especially close ties with Liberia as part of a Cold War effort to suppress socialist and Marxist movements in Africa.

During the 1960s and 1970s, Balaton became a major tourist destination for ordinary working Hungarians and especially for subsidised holiday excursions for union members.

During the first two decades of independence, Mali received major technical and financial support from the former Soviet Union, China, and their allies, especially in the area of radio and television broadcasting.

During the early modern period, scientists such as Galileo, Kepler, and especially Newton, laid the foundation for what is now known as classical mechanics.