The earliest most primitive forms of bowling can be dated back to Ancient Egypt. From records and artifacts in ancient Egypt, going back 3000–5000 years ago, remnants of bowls used at the time were found. Balls, made of husks of corn, covered in material such as leather, and bound with string were made. Other balls, made of porcelain or even plastic, also exist, indicating that these were rolled along the ground, rather than thrown, due to their size and weight. Some of these resemble the modern day jack used in target bowl games of today.