The term "planetary alignment" is often used loosely and can be misleading. Planets don't align in a perfect line like you might see in a diagram. They orbit the Sun in slightly different planes and at different speeds.

However, there are times when planets appear close together in the sky from our perspective on Earth. This is called a "planetary conjunction." These events happen relatively frequently.

Here are some examples of recent planetary conjunctions:

* June 24, 2022: Jupiter and Saturn were in conjunction.

* March 8, 2023: Venus and Mars were in conjunction.

To be more specific about your question, you need to clarify what you mean by "align." Do you mean:

* A specific set of planets in a certain configuration? (e.g., all the visible planets in a line)

* A conjunction of any two planets?

* A specific date in the past?

Once you provide more information, I can give you a more precise answer.