Problem: In the 1500s a new type of armor started to become popular due to the advent of firearms, new fighting tactics and the need for additional protection. The kozane dou made from individual scales was replaced by plate armor. This new armor, which used iron plated dou (dō), was referred to as Tosei-gusoku, or modern armor. Various other components of armor protected the samurai's body. The helmet kabuto was an important part of the samurai's armor. Samurai armor changed and developed as the methods of samurai warfare changed over the centuries. The known last use of samurai armor occurring in 1877 during the satsuma rebellion. As the last samurai rebellion was crushed, Japan modernized its defenses and turned to a national conscription army that used uniforms.
Why were there armor changes in the 1500s?
The answer is the following: the advent of firearms, new fighting tactics and the need for additional protection

Problem: Common dishes include soups and stews. Common ingredients include yams, sweet potato, cassava, onion, tomato and plantain. Spices, peppers and chilis are used in cooking, including Aframomum melegueta seeds (Guinea pepper).
What are Guinea peppers used in?
The answer is the following: cooking

Problem: The Yoga school builds on the Samkhya school theory that jñāna (knowledge) is a sufficient means to moksha. It suggests that systematic techniques/practice (personal experimentation) combined with Samkhya's approach to knowledge is the path to moksha. Yoga shares several central ideas with Advaita Vedanta, with the difference that Yoga is a form of experimental mysticism while Advaita Vedanta is a form of monistic personalism. Like Advaita Vedanta, the Yoga school of Hindu philosophy states that liberation/freedom in this life is achievable, and this occurs when an individual fully understands and realizes the equivalence of Atman (soul, self) and Brahman.
To what school does yoga share central ideas?
The answer is the following: Advaita Vedanta

Problem: Transport is one of the four main areas of policy administered by the Mayor of London, however the mayor's financial control does not extend to the longer distance rail network that enters London. In 2007 he assumed responsibility for some local lines, which now form the London Overground network, adding to the existing responsibility for the London Underground, trams and buses. The public transport network is administered by Transport for London (TfL) and is one of the most extensive in the world.
Along with the London Underground, buses and trans, what form of public rail transport was added in 2007 to the Mayor's responsibilities?
The answer is the following:
the London Overground network