In Japanese, they are usually referred to as bushi (?, [bu.i]) or buke (?). According to translator William Scott Wilson: "In Chinese, the character was originally a verb meaning "to wait upon" or "accompany persons" in the upper ranks of society, and this is also true of the original term in Japanese, saburau. In both countries the terms were nominalized to mean "those who serve in close attendance to the nobility", the pronunciation in Japanese changing to saburai. According to Wilson, an early reference to the word "samurai" appears in the Kokin Wakashu (905914), the first imperial anthology of poems, completed in the first part of the 10th century.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): When is the first known use of 'samurai'?
Ah, so.. 905914

Small-scale "expedition tourism" has existed since 1957 and is currently subject to Antarctic Treaty and Environmental Protocol provisions, but in effect self-regulated by the International Association of Antarctica Tour Operators (IAATO). Not all vessels associated with Antarctic tourism are members of IAATO, but IAATO members account for 95% of the tourist activity. Travel is largely by small or medium ship, focusing on specific scenic locations with accessible concentrations of iconic wildlife. A total of 37,506 tourists visited during the 200607 Austral summer with nearly all of them coming from commercial ships. The number was predicted to increase to over 80,000 by 2010.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Since what year has tourism been ongoing to Antarctica?
Ah, so.. 1957

The category of Native American applies to the diverse group of people who lived in North America before European settlement. During the U.S. government's westward expansion, Native Americans were displaced from their land which had been their home for centuries. Instead, they were forced onto reservations which were far smaller and less productive. According to Brest, land belonging to Native Americans was reduced from 138 million acres in 1887 to 52 million acres in 1934. In 1990, the poverty rate for Native Americans was more than triple that of the whites and only 9.4% of Native Americans have completed a bachelor's degree as opposed to 25.2% of whites and 12.2% of African Americans.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Which groups can be categorized as Non-Native Americans?
Ah, so..
unanswerable