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.
The Berlin Conference was held in Berlin between November 15, 1884 and November 26, 1885, under the leadership of German Chancellor Otto von Bismarck.hronology Otto von Bismarck was the principal architect of the Berlin Conference. The exploration of Africa by Europeans started with the Portuguese sailing along Africa's coast in 1450. The success the Portuguese had on these voyages encouraged other European naval powers to explore Africa.