Relevant link: https://books.google.com/ngrams/graph?content=surfaced&year_start=1800&year_end=2010&corpus=15&smoothing=3&share=&direct_url=t1%3B%2Csurfaced%3B

Relevant link: https://books.google.com/ngrams/graph?content=surfaced&year_start=1800&year_end=2010&corpus=15&smoothing=3&share=&direct_url=t1%3B%2Csurfaced%3B%2Cc0 https://books.google.com/ngrams/graph?content=surfaced&year_...