Yard Lines and Lime Burns
I was not there to witness it, but I’ve heard the Egyptians began building their pyramids 5,000 years ago. Somehow, they found the means to cut massive stone blocks, move them from the quarry to the building site, and lift them into alignment where they remain today. Yet, despite humans possessing those skills for ages, Americans in the 1920s sometimes struggled to chalk football fields with straight lines. — www.footballarchaeology.com
Timothy Brown gives a great look back at some of the pitfalls of ingredients used to mark lines on the field and their relation to player comfort.
