Some context: Alaska Natives are indigenous peoples of Alaska, United States: Inupiat, Yupik, Aleut, Eyak, Tlingit, Haida, Tsimshian, and a number of Northern Athabaskan cultures. They are often defined by their language groups. Many Alaska Natives are enrolled in federally recognized Alaska Native tribal entities, who in turn belong to 13 Alaska Native Regional Corporations, who administer land and financial claims. Ancestors of the Alaska Natives are known to have migrated into the area thousands of years ago, in at least two different waves.
Arriving from Siberia by ship in the mid-eighteenth century, Russians began to trade with Alaska Natives. New settlements around trading posts were started by Russians, including Russian Orthodox missionaries. These were the first to translate Christian scripture into Native languages. British and American traders generally did not reach the area until the nineteenth century, and in some cases missionaries were not active until the twentieth century. In the 21st century, the numerous congregations of Russian Orthodox Christians in Alaska are generally composed mostly of Alaska Natives.  Rather than hunting the marine life, the Russians forced the Aleuts to do the work for them. As word spread of the riches in furs to be had, competition among Russian companies increased and they forced the Aleuts into slavery. Catherine the Great, who became Empress in 1763, proclaimed good will toward the Aleut and urged her subjects to treat them fairly. On some islands and parts of the Alaska Peninsula, groups of traders had been capable of relatively peaceful coexistence with the local inhabitants. Other groups could not manage the tensions. Russians took hostages, families were split up, and individuals were forced to leave their villages and settle elsewhere. The growing competition between the trading companies, merging into fewer, larger and more powerful corporations, created conflicts that aggravated the relations with the indigenous populations. Over the years, the situation became catastrophic for the natives.  As the animal populations declined, the Aleuts, already too dependent on the new barter economy created by the Russian fur trade, were increasingly coerced into taking greater risks in the dangerous waters of the North Pacific to hunt for more otter. As the Shelikhov-Golikov Company and later Russian-American Company developed as a monopoly, it used skirmishes and systematic violence as a tool of colonial exploitation of the indigenous people. When the Aleut revolted and won some victories, the Russians retaliated, killing many and destroying their boats and hunting gear, leaving them no means of survival.  The most devastating effects were from disease: during the first two generations (1741/1759-1781/1799 AD) of Russian contact, 80 percent of the Aleut population died from Eurasian infectious diseases. These were then endemic among the Europeans, but the Aleut had no immunity against the new diseases.
What else is notable about this time period?
A: 80 percent of the Aleut population died from Eurasian infectious diseases.
Some context: The Nitty Gritty Dirt Band, an American country rock band, has existed in various forms since its founding in Long Beach, California in 1966. The group's membership has had at least a dozen changes over the years, including a period from 1976 to 1981 when the band performed and recorded as the Dirt Band. Constant members since the early times are singer-guitarist Jeff Hanna and drummer Jimmie Fadden. Multi-instrumentalist John McEuen was with the band from 1966 to 1986 and returned during 2001 departing once again in November 2017.
The Nitty Gritty Dirt Band was founded around 1966 in Long Beach, California by singer-guitarist Jeff Hanna and singer-songwriter guitarist Bruce Kunkel who had performed as the New Coast Two and later the Illegitimate Jug Band. Trying, in the words of the band's website, to "figure out how not to have to work for a living," Hanna and Kunkel joined informal jam sessions at McCabe's Guitar Shop in Long Beach. There they met a few other musicians: guitarist/washtub bassist Ralph Barr, guitarist-clarinetist Les Thompson, harmonicist and jug player Jimmie Fadden, and guitarist-vocalist Jackson Browne. As Nitty Gritty Dirt Band, the six men started as a jug band and adopted the burgeoning southern California folk rock musical style, playing in local clubs while wearing pinstripe suits and cowboy boots. Their first paying performance was at the Golden Bear in Huntington Beach, California.  Browne was in the band for only a few months before he left to concentrate on a solo career as a singer-songwriter. He was replaced by John McEuen on banjo, fiddle, mandolin, and steel guitar. McEuen's older brother, William, was the group's manager, and he helped the band get signed with Liberty Records, which released the group's debut album, The Nitty Gritty Dirt Band during 1967. The band's first single, "Buy for Me the Rain," was a Top 40 success, and the band gained exposure on The Tonight Show Starring Johnny Carson, as well as concerts with such disparate artists as Jack Benny and The Doors.  A second album, Ricochet, was released later during the year and was less successful than their first. Kunkel wanted the band to "go electric", and include more original material. Bruce left the group to form WordSalad and Of The People. He was replaced by multi-instrumentalist Chris Darrow.  By 1968, the band adopted electrical instruments anyway, and added drums. The first electric album, Rare Junk, was a commercial failure, as was their next, Alive.  The band continued to gain publicity, mainly as a novelty act, making an appearance in the 1968 film, For Singles Only, and a cameo appearance in the 1969 musical western film, Paint Your Wagon, performing "Hand Me Down That Can o' Beans". The band also played Carnegie Hall as an opening act for Bill Cosby and played in a jam session with Dizzy Gillespie.
Did they sing with any other groups during this time?
A:
Jack Benny and The Doors.