The primary function of the thyroid is the production of the iodine-containing thyroid hormones, triiodothyronine (T3) and thyroxine (T4) and the peptide hormone calcitonin. 1  T3 is so named because it contains three atoms of iodine per molecule and T4 contains four atoms of iodine per molecule.
David Livingstone was born on March 19, 1813, in Blantyre, South Lanarkshire, Scotland, and grew up with several siblings in a single tenement room.
A pioneer party, led by Major and Mrs Pascoe, set out from Kimberley, South Africa, on 5 May 1891 in a wagon drawn by 18 oxen, arriving in Fort Salisbury on 18 November. The then Rhodesia became a separate territory on 1 May 1931. Work spread to Botswana where The Salvation Army was officially recognised in 1997.