162/366 21SH tartan

Raining for a few days now.

Today, the terms Tartan, Plaid & Check are often used interchangeably, but each of these iconic patterns is in fact different.

Tartan is a pattern consisting of multiple colored criss-crossed horizontal and vertical bands. The pattern of the stripes running vertically is duplicated EXACTLY on the horizontal axis. Where the different colors overlap, new colors are created.

The word plaid is derived from the Gaelic word Plaide, meaning blanket. This oversized wool garment also known as a "belted plaid" or "great kilt" was worn around the waist and then draped over the left shoulder. The pattern woven into the fabric was Tartan.

Check patterns are simpler than plaids. They generally consist of two alternating colors, but not always. Checkered patterns are symmetrical, consisting of crossed horizontal and vertical lines that form equal sized squares. Each line is intersected by the same kind of line in equal intervals and widths.
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