The answer is checks. Older people use check as they're a lot more simple than technology today.
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Way back then in Rome there was a mix of slaves and citizens. Their extremely large population needed more room.<span>
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I believe the answer is: <span> self-actualization.
</span><span> self-actualization refers to the need to feel that we're fulfilling our full potential within the period of our life.
</span>In maslow hierarchy of need, the need of self-actualization is placed in the highest pyramid right after all other needs are fulfilled.<span />
Answer: Sir George Airy
Explanation: The prime meridian is a geographical reference line that passes through the Royal Observatory, Greenwich, in London, England. It was first established by Sir George Airy in 1851, and by 1884, over two-thirds of all ships and tonnage used it as the reference meridian on their charts and maps.