Open Era tennis records – Men's singles

The Open Era is the current era of professional tennis. It began in 1968 when …

Marin Čilić

Marin Čilić is a Croatian professional tennis player. He has been ranked world No. 3 …

Gmail

Gmail is a mailbox provider by Google. It is the largest email service worldwide, with …

Marvin Gay Sr.

Marvin Pentz Gay Sr. was an American Pentecostal minister. He was the father of recording …

Key frame

In animation and filmmaking, a key frame is a drawing or shot that defines the …

Heavy cruiser

A heavy cruiser was a type of cruiser, a naval warship designed for long range …