this is a simple demonstration--how to install a unitized curtain wall on site this is a simple demonstration--how to install a unitized curtain wall on site Skip navigation
David Livingstone (19 March 1813 â 1 May 1873) was a Scottish Congregationalist pioneer medical missionary with the London Missionary Society and an explorer in Africa.
This article is about the radio comedian. For the lady-in-waiting to Mary, Queen of Scots, see Mary Livingston. For the wife of explorer David Livingstone, see Mary Livingstone (nÃ©e Moffat).