Yucatan

Yucatan, a peninsula in Central America dividing the Gulf of Mexico from the Caribbean Sea, and one of the few peninsulas of the world that extend northwards; is a flat expanse; has a good climate and a fertile soil, yielding maize, rice, tobacco, indigo, &c.; abounds in forests of valuable wood; forms one of the States of the Mexican Republic; it bears traces of early civilisation in the ruins of temples and other edifices.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Yttrium * Yuga
Young, Thomas
Young Men's Christian Association
Young People's Society of Christian Endeavour
Youngstown
Ypres
Yriarte, Charles
Yriarte, Thomas de
Ystad
Ystradyfodwg
Yttrium
Yucatan
Yuga
Yukon
Yule
Yule, Sir Henry
Yumboes
Yung-ling
Yunnan
Yuste, St.
Yves
Yvetot