Why might the term, "unclaimed land," as it's used in official decrees like the line of Demarcation, be an inappropriate name based on what we know now?

Because its not nice to say that.

Explanation: Unclaimed land is land that is not claimed. The line of Demarcation is the line that shows Demarcation. It is inappropriate because its not fun to make fun of others :)

valentina tereshkova

soviet cosmonaut valentina tereshkova became the first woman to fly to space when she launched on the vostok 6 mission june 16, 1963. valentina tereshkova was the first woman to go into space. in 1963, she spent almost three days in space and orbited earth 48 times in her space capsule, vostok 6.jan 22, 2018

answer:

won re-nomination with no opposition he also had the support of his party

explanation:

it saw incumbent president andrew jackson, candidate of the democratic party, defeat henry clay, candidate of the national republican party. jackson won re-nomination with no opposition, and the 1832 democratic national convention replaced vice president john c. calhoun with martin van buren.