What is bc

Understanding BC (Before Christ)

BC, which stands for Before Christ, is a dating notation that has been used for centuries to denote years before year 1 in the Gregorian calendar system. The BC notation was based on the conventional calculation of Christ's birth year, which scholars established as the reference point for Western chronology. This system allowed historians, archaeologists, and scholars to create a standardized timeline for recording historical events across different civilizations and time periods.

The BC/AD Dating System

BC was historically paired with AD (Anno Domini), a Latin phrase meaning 'in the year of the Lord.' Together, BC and AD formed a complete dating system that divided human history into two major periods: years before and after Christ's birth. The year 1 AD (now written as 1 CE) was considered year 1, with no year zero in this system. Years before year 1 were marked as BC, while years after were marked as AD, creating a continuous chronological framework.

How BC Counting Works

BC counting works in reverse chronological order, which can initially confuse people unfamiliar with the system. The year 1000 BC occurred much earlier than 100 BC, even though 1000 is a larger number. To understand BC dating, think of it as counting backwards from year 1. For example, 500 BC is 500 years before year 1, while 5000 BC is 5000 years before year 1. The larger the BC number, the further back in history that year occurred.

Historical Examples Using BC

• Ancient Rome: Founded in 753 BC according to traditional dating
• Battle of Marathon: Occurred in 490 BC during the Greco-Persian Wars
• Fall of the Roman Republic: Traditionally dated to 27 BC with Augustus's rise to power
• Birth of Buddha: Estimated between 623-543 BC by various Buddhist traditions
• Construction of the Great Pyramid: Built around 2560 BC during Egypt's Old Kingdom

The Shift to BCE/CE

During the late 20th century, the academic community increasingly adopted BCE (Before Common Era) and CE (Common Era) as replacements for BC and AD. This shift was driven by a desire for more neutral, inclusive terminology in international scholarly discourse. Major universities, professional organizations, and academic journals have now adopted BCE/CE in their style guides. The change acknowledges that a secular, non-religiously specific dating system better serves a diverse global academic community while maintaining the exact same chronological framework.

BC in Modern Usage

Though increasingly replaced by BCE in academic contexts, BC remains commonly used in popular media, educational materials, and general discourse. Many history textbooks still include BC notation for accessibility, and general audiences often encounter BC more frequently than BCE. However, formal academic publications, peer-reviewed journals, and professional archaeological reports increasingly use BCE/CE terminology to maintain consistency with current scholarly standards.