Step 1: Concept
The shaka era is an important period in Indian history, particularly in relation to the Kushan Empire. It was established by Kanishka, a famous ruler who played a significant role in the expansion and cultural development of the empire.
Step 2: Meaning
Kanishka was the founder of the shaka era, which marked a new epoch in the calendar system used in parts of South Asia. This era began with his reign and is still used in some regions for dating purposes.
Step 3: Analysis
To determine when Kanishka started the shaka era, we need to consider historical records and archaeological evidence. Kanishka was a Kushan emperor who ruled from approximately 78 AD to 102 AD. He is known for his extensive patronage of Buddhism and his contributions to art and architecture.
Given that the shaka era began with his reign, it logically follows that the start date would be around the time he ascended to power. Historical records indicate that Kanishka's rule commenced in 78 AD, making this the correct starting point for the shaka era.
Step 4: Conclusion
The shaka era was initiated by Kanishka in 78 AD.
Final Answer: (C)