By early summer 1915, Hilbert's interest in physics had focused on general relativity, and he invited Einstein to Göttingen to deliver a week of lectures on the subject.

By 1915, there were more than 60 students, mostly in residence.

By this time his relationship with the 25-year-old writer Mira Mendelson ( 1915 – 1968 ) had finally led to his separation from his wife Lina, although they were never technically divorced: indeed Prokofiev had tried to persuade Lina and their sons to accompany him as evacuees out of Moscow, but Lina opted to stay.

* By 1915, human expeditions discovered Anti-Metal in Antarctica.

By 1915 twenty-five percent of the nation ’ s foundry pig iron was produced in Birmingham.

By 1915, gangrene had set in and her entire right leg was amputated ; she was required to use a wheelchair for several months.

By 1915 there were makeshift depots at Madras and Calcutta.

By 1915, Zaharoff had close ties with both David Lloyd George and Aristide Briand.

By 1915, tobacco exports from the Philippines to America had annually increased as a result of the bill passing.

By November 1915 production had been expanded to produce 350, 000 lb ( 159, 000 kg ) of cordite per month for the Imperial Munitions Board.

By November 1915 production had been expanded to 350, 000 lb ( 159, 000 kg ) of cordite per month ( approximately 1, 900 tonnes per year ).

By 19 December 1915, General Sir Douglas Haig had replaced General Sir John French as Commander-in-Chief of the British Expeditionary Force ( BEF ).

By autumn 1915, with Asquith ’ s Coalition close to breaking up over conscription, he was blamed for the failure to bring in that measure and for the excessive influence which civilians like Churchill and Haldane had come to exert over strategy, allowing ad hoc campaigns to develop in Sinai, Mesopotamia and Salonika.

By autumn 1915 Asquith ’ s Coalition was close to breaking up over conscription, and in the absence of firm leadership ad hoc campaigns had developed in Sinai, Gallipoli, Mesopotamia and Salonika.

By 1915 the county had built of roadways, the most of any county in the state for its size.

By 1915, electricity lines ran from Magnetic Springs to Richwood.

By 1915, they began holding church meetings at the Gilbert Elementary School.

By 1915, the village boasted four cotton gins producing thousands of bales of cotton ; however, the decline in the demand for cotton led local farmers toward the growing of rice that is now the major crop of the area.

By 1915, there were over 600 residents.

By 1915, 3, 636 people lived in Tuxedo, about 20 % more than were reported in the 1990 Census.

By 1915, an engineering staff was employed, and plans made for valley-long channel improvements, levees, and basins to temporarily retain excessive rains.

By 1915, the population reaches 1, 000, with a bank, hotels, blacksmiths, three stores and a lumber yard.

By 1915, the biggest year for the factory, were planted, yielding 36, 915 tons of sugar beets, which were processed into 7, 722 tons of sugar.

By 1915, a published photo shows many more businesses along First Street.

By 1915 many farms were established in the irrigation district and the population of the flats was 5, 277.

By 1975, Fifth Estate was lingering on — many staff had burnt out through too much activism and they had their share of internal disputes.

By 1789, the Cromford Estate was back in the ownership of the Arkwrights, who actively influenced its structure and construction.

By 1956, the Victoria Industrial Estate was completed, and has since expanded.

By the middle of the seventeenth century the Airthrey Estate had passed to relatives of the Marquess of Montrose, the Grahams.

By the date of designation of Milton Keynes, it had already been virtually absorbed by the 1960s Greater London Council-built London overspill district known as the Lakes Estate.

By virtue of the last will of Philip V of Spain, Rodriguez de Figueroa or " Don Esteban ", a group of Augustinian Fathers gained the ownership of the Tunasán Estate.

By the beginning of World War II, three large estates were in existence: the Page Estate ( 1923 ), Middle Park ( 1931 – 36 ), and Horn Park ( begun 1936, completed 1950s ).

By the late 20th century the Well Hall example had become known as the Progress Estate and legend has it that no two houses there are built to the same plan.

By the Tennis Court Oath, the communes ( representatives of the Third Estate ) had bound themselves to meet continuously until France had a constitution, a goal which had not yet been achieved in the course of a year.

By 1907, and within four years of Bill Jackson's inheritance, the entire Estate and the Belle Meade Mansion had been auctioned off and sold by Richardson.

By 1944, almost 16, 000 people were being employed on the Estate.

By 1956, work on the Princess Margaret Estate ( later shortened to Princess Estate ) had more than 1, 000 flats comprising one, two and three-room units and 68 terrace houses.

By the 1920s, the business in downtown Chicago could support a much larger facility, and the Palmer Estate decided to erect a new 25-story hotel.

By the roundabout is Lakeview Estate, designed by Berthold Lubetkin.

* Altered Eden: Pasadena, Sierra Madre and Their First Real Estate Boom By George A. Crofutt: Southern California's Boom of the Eighties

By 1834 the Campbell Estate grew to < span style =" white-space: nowrap "> 1, 242 acres ( 5 km² )</ span >.

By the end of the nineteenth century, some Darvall land had been sold, yet the bulk of the Ryedale Estate remained intact.

By this time the Shay Estate was in the hands of the Halifax Corporation, and with the completion of the new Skircoat Road, the future of the Shay must have looked very much in doubt.

By 1819 both the ' Meadow Bank Estate ' and ' Chatham Farm ' to the north, belonged to Bennett.

By April 1978, Landcom was building its Highfield Estate, the first part of the proposed suburb.