Early neodymium glasses made in the 1930s have a more reddish or orange tinge than modern versions which are more cleanly purple, due to the difficulties in removing the last traces of praseodymium in the era when fractional crystallization technology had to be relied on.

Archaeological excavations reveal traces of strong fortifications dated to the Early Bronze Age.

* c. 1500 BC: Early traces of Maya civilization developing in Belize.

The traces of buildings, walls and a road from this time period prove that life existed and continued to do so during the Early Hellenic era ( 3000 – 2000 BC ).

Anina is a fossile-Lagerstatte for Early Jurassic biota, the Hettangian-Sinemurian terrestrial Steierdorf Formation recording an extremely rich floral association, vertebrate and invertebrate tracks, traces and burrows.

The rebuilding, in the Early English style, made the abbey far more extensive than the original Norman establishment, as can be seen today from traces in the abbey grounds.

The earliest traces of humans in Schwyz are from the Upper Paleolithic and Early Mesolithic or about 12, 500 BC.

He found traces of a keen conflict of parties in the post-apostolic age, which have passed into the mainstream of Early Christian historiography.

Early traces of Christianity can be found in the major urban areas from the 4th century onwards, a bishopric from 589 in Pamplona and three hermit cave concentrations ( two in Álava, one in Navarre ) were in use from the 6th century onwards.

The book: The Tamils in Early Ceylon By C. Sivaratnam traces some of the Mudaliyars in Ceylon to Thaninayaka Mudaliyar ( among other ), a rich Saiva Velalar who emigrated to Ceylon from Tondaimandalam

Early traces of human occupation include Megalithic tombs and Standing Stones.

Early Egyptological excavations some 2 or 3 km from the area known today as Abu Qir have revealed extensive traces of the city with its quays, and granite monuments with the name of Ramesses II, but they may have been brought in for the adornment of the place at a later date.

Early traces of Julian ’ s prowess grace two sides of this historical platter.

Early the next morning ; on Saturday September 13, Mr. A Lee Stewart visited the site of the encounter for a second time and discovered two elongated tracks in the mud, as well as traces of a thick black liquid.

The first traces of civilization on the hill date from the Bronze Age, while the ceramics found on the place date from the Early Iron Age, as well as the impressive round altar, almost 2 m in diameter, hewn out of the rocks.

The transconductance and Early voltage of a transistor are examples of parameters traditionally measured with the assistance of an I – V chart, or laboratory equipment that traces the charts in real time on an oscilloscope.

Early descriptions of the production process and glazing techniques used for bricks can be found in the Song Dynasty carpenter's manual Yingzao Fashi, published in 1103 by the government official Li Jie, who was put in charge of overseeing public works for the central government's construction agency.

Early homes were built of logs and later mostly of frame, as wood was plentiful while bricks had to be made on site.

Early industries included the manufacturing of bricks and limestone.

Early in the twentieth century, it had extensive stove and brass factories, glass and bottle works, embroidery and silk mills, a dye and bleaching plant, bridge works, and manufactories of bricks, gas meters, stockings, shirts, shafting parts, wagons, agricultural implements, etc.

Early examples featured banding, with later examples exhibiting complex diagonal, criss-cross and step patterns, in some cases even writing using bricks.

Early in 1941 they were assigned to a script titled Hot Nocturne.

Early in her life she had discovered that where there were men, there was money, and with the two came luxury and liquor.

But his first few days with Troop H were full of surprises, beginning with First Sergeant Robert Early.

Early atomic time scales consisted of quartz clocks with frequencies calibrated by a single atomic clock ; the atomic clocks were not operated continuously.

Early evidence of such practices appears as markings on bones and cave walls, which show that lunar cycles were being noted as early as 25, 000 years ago ; the first step towards recording the Moon ’ s influence upon tides and rivers, and towards organizing a communal calendar.

Early plate in Italy, and elsewhere in the 13th – 15th century were made of iron.

He also wrote songs, including his Seven Early Songs ( Sieben Frühe Lieder ), three of which were Berg's first publicly performed work in a concert that featured the music of Schoenberg's pupils in Vienna that year.

Early forms of industry developed at this time ; however, unlike in other cities, no guilds were formed in Aarau.

For much of artillery's history during the Middle Ages and the Early modern period, artillery pieces on land were moved with the assistance of horse teams.

Early ammeters were laboratory instruments which relied on the Earth's magnetic field for operation.

Early skirmishes were followed by victory for the Afghans against the smaller Maratha garrisons in Northwest India and by 1759 Ahmad and his army had reached Lahore and were poised to confront the Marathas.

Early number systems that included positional notation were not decimal, including the sexagesimal ( base 60 ) system for Babylonian numerals and the vigesimal ( base 20 ) system that defined Maya numerals

Early BBSes were often a local phenomenon, as one had to dial into a BBS with a phone line and would have to pay additional long distance charges for a BBS out of the local calling area.

Early, African-influenced banjos were built around a gourd body and a wooden stick neck.

Early modern writers, such as Polydore Vergil and Matthew Parker, the Elizabethan Archbishop of Canterbury, also utilised the Historia, and his works were used by both Protestant and Catholic sides in the Wars of Religion.

Early buses, known as trolleybus, were powered by electricity supplied from overhead lines.

Early buses were merely a bus body fitted to a truck chassis.

Early horse-drawn buses were a combination of a hackney carriage and a stagecoach.

Early battles were probably fought between rival hunting bands as disorganized mobs.

Early implementations were for the DEC PDP-7 and PDP-11 minicomputers using early Unix, and Honeywell 36-bit mainframes running the operating system GCOS.

Early collections of English ballads were made by Samuel Pepys ( 1633 – 1703 ) and in the Roxburghe Ballads collected by Robert Harley, 1st Earl of Oxford and Mortimer ( 1661 – 1724 ).

Early in the history of the college, there had been some hesitancy on the part of other institutions to accept BJC credits at face value, but by the 1960s, BJU alumni were being accepted by most of the major graduate and professional schools in the United States.

Early computer installations were designed only to support a single writing system, typically for left-to-right scripts based on the Latin alphabet only.