Around 1820, Charles Xavier Thomas created the first successful, mass-produced mechanical calculator, the Thomas Arithmometer, that could add, subtract, multiply, and divide.

Around 1820, free reed designs began being created in Europe.

Around 1820 an estancia ( station ) was established a few miles north on the banks of the Santa Ana River to accommodate the Mission's sizeable cattle herd.

Around 1820, the two neighbouring villages of St-Arnoult and Crevon were joined with Blainville to become Blainville-Crevon.

Around 1820, the Japanese inventor Kunitomo Ikkansai developed various manufacturing methods for guns, and also created an air gun based on the study of Western knowledge (" rangaku ") acquired from the Dutch in Dejima.

Around 1820 the entire Zugspitzplatt was glaciated, but of this Platt Glacier ( Plattgletscher ) only the Northern and Southern Schneeferner remain.

Around 1820 a new loom was invented in Teufen, allowing embroidery in one go.

Around 1820 Samuel Budgett became a partner and the name became H. H.

Around 1820, William " Killymoon " Steward built one of the first tavern / inns in the area.

Around 1820 Bayre sculpted Hercules with the Erymanthean Boar, depicting Hercules during his third Labor, where he had to capture, live, a wild boar from Mount Erymanthos.

Around 1820 " General Geography " was established by Carl Ritter.

Around 1820, at age 19, Heber set out on his own.

Around 1820, it was known as Freeport.

Around 1820 the senior Rowland Hazard renamed the nearby industrial village to Wakefield after the town and family of the same name in England, who were friends of his.

Around 1820, Hicks made the first of his many paintings of The Peaceable Kingdom.

Around 1820 he tried to find a medicine to improve appetite and digestive well-being of the soldiers.

Around 1820, a mestizo rancher named Augustine Machado began grazing his cattle on the Ballona wetlands and claimed a fourteen-thousand acre Mexican land grant that stretched from modern-day Culver City to Pico Boulevard in Santa Monica.

The sharpest break with tradition, the past and present of `` White Ring Around a Black Core '', may come with the opening of nearby Montgomery County suburbs to Negro residents and, presumably, the consequent conclusion of some whites that they cannot escape the Negro by fleeing to the suburbs.

Around 446 BC, they were given the authority to care for the decrees of the senate ( senatus consulta ).

Around 60 BC they clashed with the rising power of the Dacians under their king Burebista and were defeated.

Around the house prowled strangely docile lions and wolves, the drugged victims of her magic ; they were not dangerous, and fawned on all newcomers.

Around 21 – 28 days after birth, the young begin to emerge from the den, and by 35 days, they are fully weaned.

Around humans, chipmunks can eat cultivated grains and vegetables, and other plants from farms and gardens, so they are sometimes considered pests.

Around the same time, they met Italian movie producer Dino De Laurentiis, the owner of production and distribution company DEG.

Around the all-star break they made their second big trade sending OF Cliff Floyd to the Expos for RHP Carl Pavano, RHP Justin Wayne, INF Mike Mordecai, LHP Graeme Lloyd, RHP Don Levinski and INF Wilton Guerrero.

Around three-quarters of cat species live in forested terrain, and they are generally agile climbers.

Around 300 BC, they were pushed inland by the Deutero-Malays, an Iron Age or Bronze Age people descended partly from the Chams of Cambodia and Vietnam.

Around 1900 BCE they were replaced by angular harps with verti-cal ( fig.

Around the time of the American Civil War, syrup makers started using large, flat sheet metal pans as they were more efficient for boiling than heavy, rounded iron kettles, because of a greater surface area for evaporation.

Around 700 BC, they appear to have developed systems of social organization that were the precursors of the Inca civilization.

Around the middle of the 13th century, various legends developed that, after Richard's capture, his minstrel Blondel travelled Europe from castle to castle, loudly singing a song known only to the two of them ( they had composed it together ).

Around 800 AD, they were replaced by the Igneri people, members of the Arawak group.

Around 716, when his abbot Wynberth of Nursling died, he was invited ( or expected ) to assume his position — it is possible that they were related, and the practice of hereditary right in early Anglo-Saxon would affirm this.

Around 2000, the artist's squats movement was exposed in the medias, and quite popular ( as they chose to occupy empty public-owned buildings mainly, at a time when middle-class Parisians could not afford skyrocketing prices for renting a decent flat ).

Around 500 BC, they formed the powerful Odrysian Kingdom, which subsequently declined and Thracian tribes fell under Macedonian, Celtic and Roman domination.

Around 2. 2 million Africans died during these voyages where they were packed into tight, unsanitary spaces on ships for months at a time.

Around them, they only heard pidgins spoken, without enough structure to function as natural languages ; and the children used their own innate linguistic capacities to transform the pidgin input into a full-fledged language.

Around 1674 BC, these Canaanites, whom the Egyptians referred to as " rulers of foreign lands " ( Egyptian, ), hence " Hyksos " ( Greek ), invaded Egypt, where they would rule for over a century.

Sometimes the songs represented original material, or on one occasion, Noël Coward's classic There Are Bad Times Just Around The Corner, but just as often they were Cockney music hall chestnuts such as Little Bit of Cucumber.

There were several earlier songs of the title " Rock Around the Clock " ( by Hal Singer and Wally Mercer ), but they are unrelated to the Freedman / Myers song.

Many musicians have claimed that they performed on the recording session for " Rock Around the Clock.