During the 1870s and 1880s, Chicago attained national stature as the leader in the movement to improve public health.

During the 1870s, the Philological Society was concerned with the process of publishing a dictionary with such an immense scope.

During the 1870s and 1890s, Puerto Rico did not have a national railroad system, but the city of Mayagüez did have a small passenger rail system for transporting its residents mainly along the Mendez Vigo Avenue.

During the 1860s and 1870s, pioneering stellar spectroscopist Father Angelo Secchi created the Secchi classes in order to classify observed spectra.

During the late 1860s and early 1870s, from within his father's firm in Charing Cross and, by late 1874, from a nearby address in Craig's Court, Carte began to build an operatic, concert and lecture management agency.

During the Second Opium War and the Taiping Rebellion, piratical junks were again destroyed in large numbers by British naval forces but ultimately it wasn't until the 1860s and 1870s that fleets of pirate junks ceased to exist.

During the 1870s, there was some talk of a marriage between him and Queen Victoria's youngest daughter, Princess Beatrice.

During the 1870s, muskeg in Northern Ontario was reported to have swallowed a railroad engine whole when a track was laid on muskeg instead of clearing down to bedrock.

During the period known as Blackbirding, in the 1870s and 1880s, hundreds of thousands of Pacific islanders ( many of them from the New Hebrides ( now Vanuatu ) archipelago ) were enslaved and forced to work on plantations, mainly in Queensland, Australia and Fiji.

During the 1870s, Kingman County abounded with bison.

During the 1870s, Appling suffered severe damage during a tornado.

During the 1870s, there were regular outbreaks of violence in Louisiana, despite the presence of two thousand federal troops stationed there.

During the 1870s, Melbourne fielded teams in the Seven Twenties and South Yarra Cup competitions.

During restoration work in the 1870s, the crypt which had been closed since the Reformation was refurbished and opened as a chapel, and Saint Canute once more went on display.

During the heyday of mining in the area ( the 1870s ), Cartago was a steamboat port for shipment of wood and ore.

During the 1870s, a small community named Arch Beach had been started at the mouth of Bluebird Canyon.

During the 1870s, writer Charles Nordhoff promoted the town as a health resort and destination for well-to-do travelers from other parts of the U. S .; many of them came, and many stayed.

During the 1870s, Hamilton Disston of Philadelphia took an interest in developing the region while on fishing trips with Henry Shelton Sanford, founder of the city of Sanford.

During the 1870s and 1880s German, Swedish, and Polish immigrants came to work in the factories.

During the 1870s, the population of McGregor exploded to over 5, 500 as the city became the busiest shipping port west of Chicago.

During the 1870s, many of the historic business structures seen today were erected.

During the 1870s, groups of developers began to promote a residential community with large lots and a grid pattern of streets, stating the advantages of the community.

During the 1870s the Commercial Hotel, south of the railroad depot, was one of the largest in Nebraska west of Lincoln.

During the 1870s the mills were enormously profitable because of the Erie Canal, which flowed past them at that time.

During much of the fifteen-mile ride they had watched a lurid display of lightning in the sky to the east.

During the decade that followed, the common man, as that piece put it, grew uncomfortable as the Voice of God and fled from behind Saint Woodrow ( Wilson ) only to learn from Science, to his shocked relief that after all there was no God he had to speak for and that he was just an animal anyhow -- that there was a chemical formula for him, and that too much couldn't be expected of him.

During these first days of the trial I didn't have as much time to commiserate with Viola as I should have liked.

During much of the year the general level of business activity has moved along on a record-high plateau, but there have been persistent signs of slack in the economy.

During the Late Bronze Age circa 2000 BC, they created an empire, the Hittite New Kingdom, which reached its height in the 14th century BC, controlling much of Asia Minor.

During the 1st century BC the Armenians in what had been Urartu established the powerful Armenian kingdom under Tigran who reigned throughout much of eastern Anatolia between the Caspian, Black Sea and Mediterranean.

During this project he realized that a much more general design, the Analytical Engine, was possible.

During his reign, Poland suffered much humiliation at the hands of her subject principality, Moldavia.

During the last twenty years of his life Alexios lost much of his popularity.

During much of the 1970s Roma's appearance in the top half of Serie A was sporadic.

During his presidency, Clinton advocated for a wide variety of legislation and programs, much of which was enacted into law or was implemented by the executive branch.

During the late 1960s, the Baseball Players Union became much stronger and conflicts between owners and the players ' union led to major work stoppages in 1972, 1981, and 1994.

During a major news event one or more of the main news presenters may be sent to present live for the channel from the scene of the story, where they will conduct interviews with the people involved, question correspondents, introduce related reports and also give general information on the story, much as a reporter sent to cover a story would.

During much of the 18th century, Ouaddai resisted reincorporation into Darfur.

During this trip, he further conceived the character of Conan and also wrote the poem " Cimmeria ", much of which echoes specific passages in Plutarch's Lives.

During the Tang Dynasty ( 618-907 ), the Chinese used a silver canister where written lots could be drawn that designated which player had to drink and specifically how much ; for example, from 1, 5, 7, or 10 measures of drink that the youngest player, or the last player to join the game, or the most talkative player, or the host, or the player with the greatest alcohol tolerance, etc.

During the next about 150 years nobody paid much attention to actually abide fully to the proportions of the flag given in the 1748 regulation, not even the government.

During much of this period, a number of Eritreans fought for independence from Ethiopia.

During his minority as her ward, one third of his estate had already reverted to the Crown, much of which Elizabeth had long since settled on Robert Dudley.

During the recording of the third album, Gibson was let go after a dispute over money and Walker left since touring was keeping him away from his family too much.

During the many 20th century spy scandals, much information became publicly known about national spy agencies and dozens of real-life secret agents.

During the last several decades the number of El Niño events increased, and the number of La Niña events decreased, although we may need to observe ENSO for much longer to detect robust changes The question is whether this is a random fluctuation or a normal instance of variation for that phenomenon or the result of global climate changes toward global warming.

During Hillary Clinton's campaign for election to the U. S. Senate, the couple's daughter Chelsea took over much of the First Lady's role.

During his own reign, Frederick William I did much to centralize and improve Prussia.

During his honeymoon in the Harz mountains, Cantor spent much time in mathematical discussions with Richard Dedekind, whom he had met two years earlier while on Swiss holiday.