Leap years and why we need them

It's a leap year which means there's an extra day in the calendar - 29 February 2020. But why do we need it?

from BBC News - World https://ift.tt/2T4hbmU
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How to win Eurovision, according to the experts

Eurovision songwriters, judges and more discuss crafting the ideal anthem. from BBC News https://ift.tt/wgY4cnO