"Early pioneers" refers to people who were the first to explore, settle, or make significant advancements in a particular field or area. Full definition
Featuring case studies from early pioneers to today's marketing innovators, you'll learn how content marketing has changed — and will continue to change — business and media forever. (contentmarketinginstitute.com)
Ride hobby horses and discover how horses helped early pioneers. (chicagoparent.com)
[134] Theosophy was also an influence over a number of early pioneers of abstract art. (en.wikipedia.org)