Who is often called the "Father of History" for writing one of the earliest systematic history books about the Greek–Persian wars?

Introduction / Context:
This question belongs to the history of historiography, that is, the study of how history itself is written. One ancient writer is frequently credited as the first to write a continuous, systematic account of historical events using investigation and narrative, which led later scholars to call him the Father of History.

Given Data / Assumptions:
• We are asked to identify the writer often called the Father of History. • The options include several classical figures: Herodotus, Euclid, Julius Caesar, Aristotle and Thucydides. • The question hints that the writer produced a systematic history, not a mathematical or philosophical text. • We assume basic familiarity with what each of these figures is known for.

Concept / Approach:
Herodotus of Halicarnassus wrote a work commonly known as Histories, which describes the causes and events of the Greek–Persian wars and contains many ethnographic and geographical observations. Because he attempted to collect information, compare accounts and present a coherent story of past events, later generations praised him as the Father of History. Even though his methods are not fully modern, his work marks a major step away from pure myth and legend.

Step-by-Step Solution:
Step 1: Recall that Herodotus wrote Histories, dealing with the Persian invasions of Greece. Step 2: Recognise that Euclid is famous for geometry, especially the Elements. Step 3: Remember that Julius Caesar wrote commentaries on his own campaigns, but he is primarily known as a Roman general and statesman. Step 4: Note that Aristotle is mainly a philosopher and scientist, not chiefly a historian. Step 5: Choose Herodotus as the figure most closely associated with being the Father of History.

Verification / Alternative check:
Reference works and history textbooks almost always introduce Herodotus with this title. They also mention that another historian, Thucydides, is praised for more critical and analytical history, but the specific label Father of History is attached primarily to Herodotus. This consistent usage in academic and general literature supports the choice of Herodotus as the correct answer.

Why Other Options Are Wrong:
Euclid: Known as the Father of Geometry, not as the Father of History. Julius Caesar: A Roman leader who wrote historical commentaries, but he is not given this particular title. Aristotle: A major philosopher and polymath, but his main contributions are in philosophy, logic and science rather than narrative history. Thucydides: An important historian of the Peloponnesian War, sometimes seen as more critical than Herodotus, but the title Father of History is traditionally reserved for Herodotus.

Common Pitfalls:
Learners occasionally confuse the roles of Herodotus and Thucydides. A simple memory aid is that Herodotus comes first in time and is called the Father of History, while Thucydides is praised for a more rigorous, almost modern style. Keeping these characterisations separate will help you answer questions about early Greek historians correctly.

Final Answer:
The writer often called the Father of History is Herodotus.