Which among the following chronology is correct regarding four samvatas?

Which among the following chronology is correct regarding four samvatas?
Which among the following chronology is correct regarding four samvatas? (1). Gupta-Gregorian-Hizri-Saka (2). Gregorian-Saka-Hizri-Gupta (3). Saka-Gregorian-Hizri-Saka (4). Hizri-Gupta-Gregorian-Saka Answer: Saka-Gupta-Hizri-Gregorian which is not in above options. Explanation: The Saka Samvat associated with 78 A.D. The Gupta Samvat associated with 320 A.D. The Hizri Samvat associated with 622 A.D. The civil calendar that is widely used is the Gregorian calendar also known as the Western and Christian calendars. By a proclamation issued in 1582, Gregorian calendar was introduced. What is Chronology? Chronology can be described as science of locating historical events in time. It depends mostly upon chronometry, which is also known as timekeeping, and historiography, which examines the writing of history and the use of historical methods. The terms calendar and era concerned with two complementary fundamental concepts of chronology. If we take an example that during eight centuries the calendar b…