 7 Fascinating 777 Facts. 1. Triple 7, The date July 7, 2007 contains 3 occurrences of the number 7, which is seen as a lucky number in many cultures and is linked to luck, intuition, and spiritual insight. 2. Technology, The launch of the iPhone, a groundbreaking product that would later transform the smartphone market, occurred on July 7, 2007, making it a notable date in the world of technology. 3. World events, The live, Earth concert series, which featured performances from more than 150 musical acts and aimed to raise awareness of climate change, took place on July 7, 2007.