The document outlines the history of lead generation from ancient times of public shouting to sell goods to the modern era of digital marketing and metaverse. It traces the evolution from newspaper publishing in 1700, posters in 1800, billboards in 1860, telegraph in 1870, radio in 1930, TV commercials in 1941, door-to-door sales in 1950, cold calling in 1960, ebooks in 1971, email spam in 1978, AOL in 1989, the world wide web in 1994, banner ads and online search in 1995, social media and mobile apps from 1998-2021, and the emergence of metaverse virtual reality spaces in 2022.