Complex sentence: Palaeography is in many ways a prerequisite for philology, and it tackles two main difficulties: first, since the style of a single alphabet has evolved constantly (Carolingian minuscule, Gothic, etc.), it is necessary to know how to decipher the individual characters.
Split into simpler sentences: Palaeography is in many ways a prerequisite for philology, and it tackles two main difficulties. First, since the style of a single alphabet has evolved constantly it is necessary to know how to decipher the individual characters.