Every time you send an email, you see three familiar fields:

Most people know what BCC does.

It lets you send a copy of an email without revealing other recipients.

But have you ever wondered:

Why is it called BCC?

The answer goes back long before computers, to a time when offices used typewriters and carbon paper.

BCC is short for:

Blind Carbon Copy

To understand the term, we first need to understand what a carbon copy was.

Before photocopiers and printers existed, making duplicate documents was difficult.

Office workers used a special sheet called carbon paper.

The setup looked like this:

When someone typed on a typewriter, the pressure transferred ink from the carbon paper onto the sheet below.

This created an exact duplicate.

That duplicate was called a:

Carbon Copy (CC)

In traditional office correspondence, a carbon copy was often sent to additional people.

Everyone could see who received copies.

However, sometimes a copy needed to be sent discreetly.

The original recipient would not know another person had received a copy.

This hidden copy became known as a:

Blind Carbon Copy

In other words:

When email systems were developed in the 1970s and 1980s, designers borrowed familiar office terminology.

Instead of inventing new names, they kept:

Even though modern email no longer uses carbon paper, the terms survived.

Today:

BCC remains important for:

For example, if you send an email to 100 people using BCC, each person sees only their own address.

This prevents:

The next time you click the BCC field in an email, remember something fascinating.

You are using a term from an era of:

A piece of office jargon from more than a century ago somehow survived the digital revolution.

And today, billions of emails still carry its name.

BCC stands for Blind Carbon Copy.

The term comes from carbon paper, which was used to create duplicate documents before photocopiers existed.

CC recipients can see all recipients, while BCC recipients remain hidden from others.

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