Question

list the sources of modern history

Answer 1

mitro train, rocket, etc. .. modern

Answer 2

Modern history, the modern period or the modern era, is the extended, global, strategy to the point frame after post-classical account.

Primary sources incorporate authentic biographies, journals, film footage, commentaries, letters, artwork, antiques, ornaments, paintings.

Secondary sources are commonly learned books and articles. A secondary source deciphers and investigates the authenticity of  primary sources.