 <translate> Q: Context: In the UK, the Ordnance Datum (the 0 metres height on UK maps) is the mean sea level measured at Newlyn in Cornwall between 1915 and 1921. Prior to 1921, the datum was MSL at the Victoria Dock, Liverpool.

Question: where is sea level measured in the uk?
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 <yor> Q: Context: Ni UK, Ordnance Datum (ìgùn 0 mita lori awọn maapu UK) ni iwọn ipele okun ti a wiwọn ni Newlyn ni Cornwall laarin 1915 ati 1921. Ṣaaju ọdun 1921, datum jẹ MSL ni Victoria Dock, Liverpool.  Ìbéèrè: ibo ni a ti ń díwọ̀n òkun ní ilẹ̀ gẹ̀ẹ́sì? Ẹ jẹ́ kí a fún ìsun ìmọ̀lára ní ìsàlẹ̀ 