Format Web Page Location PART 2 - FOUR HIDDEN CHIMNEYS CHAPTER 10: BUILDING-BLOCK REALITY Symbiotic, Rather than Adversarial "YouTube was founded in 2005." YouTube's own twentieth-anniversary material identifies 2005 as its founding year. View Source Source title Test your YouTube IQ: 20th birthday edition Source authors The YouTube Team Source year 2025 Confidence high Importance low
