Complex sentence: In his early years he worked briefly for the Ministry of Finance (1825--1828), and was an active political journalist, and from 1826 to 1830 opposed the reactionary policy of Charles X of France in "Le Globe".
Split into simpler sentences: In his early years he worked for the Ministry of Finance (1825--1828), and was an active journalist. From 1826 to 1830 he opposed the policies of Charles X of France in "Le Globe".