Products
Features
YouTube Video Summarizer
Summarize YouTube videos
Web & PDF Highlighter
Highlight web pages & PDFs
Chat with PDF
Ask any PDF questions with AI
Ask AI Clone
Chat with your highlights & memories
Audio Transcriber
Transcribe audio files to text
Glasp Reader
Read and highlight articles
Kindle Highlight Export
Export your Kindle highlights
Idea Hatch
Hatch ideas from your highlights
Integrations
Obsidian Plugin
Notion Integration
Pocket Integration
Instapaper Integration
Medium Integration
Readwise Integration
Snipd Integration
Hypothesis Integration
Apps & Extensions
Chrome Extension
Safari Extension
Edge Add-ons
Firefox Add-ons
iOS App
Android App
Discover
Discover
Ideas
Discover new ideas and insights
Articles
Curated articles and insights
Books
Book recommendations by great minds
Posts
Essays and notes from readers
Quotes
Inspiring quotes collection
Videos
Curated videos and summaries
Explore Glasp
Glasp Newsletter
Weekly insights and updates
Glasp Talk
Interview series with great minds
Glasp Blog
Latest news and articles
Glasp Use Cases
Learn how others use Glasp
Build & Support
Glasp API
Access Glasp's API for developers
MCP Connector
Connect Glasp to Claude & ChatGPT
Community
Glasp Reddit Community
Students
Student discount and benefits
FAQs
Frequently Asked Questions
AboutPricing
DashboardLog inSign up

What Do BC, BCE, AD, and CE Mean in Dating?

May 30, 2011
by
Khan Academy
YouTube video player
What Do BC, BCE, AD, and CE Mean in Dating?

TL;DR

BC and BCE denote the same years before Christ's birth, with BCE being less religious. AD stands for Anno Domini, meaning 'year of our Lord,' while CE refers to the Common Era, both representing years after Christ. Notably, there is no year 0 in this calendar system.

Transcript

This right here is a fresco by Raphael of Plato hanging out with his best student, Aristotle. And you may or may not know that these two fellows, along with Plato's teacher, Socrates, are considered the fathers of Western philosophy. But that's not what this video is about. This is actually just a small little video about different dates, or maybe ... Read More

Key Insights

  • 🥳 BC and BCE refer to the same timeline, denoting the years before the birth of Christ or the Common Era.
  • 🫠 AD and CE are interchangeable and represent the years since the birth of Christ or the Common Era.
  • 🧑‍🤝‍🧑 These dating mechanisms have different implications and religious connotations.
  • 🫠 There is no year 0; the transition is from 1 BC/BCE to 1 AD/CE.
  • ❓ The choice between BC/BCE and AD/CE is a matter of preference, but the conventional usage is well-established.
  • 😥 The dating mechanisms provide a reference point and help measure the passage of time.
  • 🥳 Historians estimate the birth of Christ around 7 to 2 BC/BCE and his death between 30 and 36 AD/CE.

Install to Summarize YouTube Videos and Get Transcripts

Explore YouTube Video Summarizer or Get YouTube Transcript Extractor

Questions & Answers

Q: What is the difference between BC and BCE?

BC stands for Before Christ, indicating the years before the birth of Christ. On the other hand, BCE stands for Before the Common Era, which is a more secular way of denoting the same timeframe.

Q: What does AD stand for?

AD stands for Anno Domini, which means the year of the Lord or the year of our Lord. It represents the years since the birth of Christ.

Q: Is BC the same as AD?

No, BC and AD represent different periods of time. BC refers to the years before the birth of Christ, while AD refers to the years since his birth.

Q: Why do some people prefer BCE and CE over BC and AD?

Some people prefer BCE (Before the Common Era) and CE (Common Era) because they find BC and AD too explicitly centered around Christ. BCE and CE aim to be more inclusive and secular.

Summary & Key Takeaways

  • Dates can be specified in different ways, such as 428 BC or 428 BCE, referring to the same year in history, but with different implications.

  • BC stands for Before Christ, indicating the number of years before the birth of Christ, while BCE stands for Before the Common Era, aiming to be less religious.

  • AD stands for Anno Domini, meaning the year of the Lord, representing the years since the birth of Christ, and CE stands for Common Era, used interchangeably with AD.

  • There is no year 0 in these dating mechanisms.


Read in Other Languages (beta)

English

Share This Summary 📚

Summarize YouTube Videos and Get Video Transcripts with 1-Click

Download browser extensions on:

Try YouTube Summary with ChatGPT & Claude or YouTube Transcript Generator

Explore More Summaries from Khan Academy 📚

Classical Japan during the Heian Period | World History | Khan Academy thumbnail
Classical Japan during the Heian Period | World History | Khan Academy
Khan Academy
Breakthrough Junior Challenge Winner Reveal! Homeroom with Sal - Thursday, December 3 thumbnail
Breakthrough Junior Challenge Winner Reveal! Homeroom with Sal - Thursday, December 3
Khan Academy
Interview with Karina Murtagh thumbnail
Interview with Karina Murtagh
Khan Academy

Summarize YouTube Videos and Get Video Transcripts with 1-Click

Download browser extensions on:

Try YouTube Summary with ChatGPT & Claude or YouTube Transcript Generator

Apps & Extensions

  • Chrome Extension
  • Safari Extension
  • Edge Add-ons
  • Firefox Add-ons
  • iOS App
  • Android App

Key Features

  • YouTube Video Summarizer
  • Web & PDF Summarizer
  • Web & PDF Highlighter
  • Chat with PDF
  • Ask AI Clone
  • Audio Transcriber
  • Glasp Reader
  • Kindle Highlight Export
  • Idea Hatch

Integrations

  • Obsidian Plugin
  • Notion Integration
  • Pocket Integration
  • Instapaper Integration
  • Medium Integration
  • Readwise Integration
  • Snipd Integration
  • Hypothesis Integration

More Features

  • APIs
  • MCP Connector
  • Blog & Post
  • Embed Links
  • Image Highlight
  • Personality Test
  • Quote Shots

Company

  • About us
  • Blog
  • Community
  • FAQs
  • Job Board
  • Newsletter
  • Pricing
Terms

•

Privacy

•

Guidelines

© 2026 Glasp Inc. All rights reserved.