Skip to main content

The timeline can be navigated with the “Scroll Left” and “Scroll Right” buttons or by dragging the pointer to a date on the timeline waveform (located at the bottom of the screen on the desktop version and on the left of the screen on mobile). To filter by a particular topic and see a smaller section of the data, make a selection on the dropdown “Filters” menu or click “Search” to do a keyword search. Hover over the abbreviated filter tags in the blue boxes to see the complete name of the filter, or click a filter to display all the data with this tag. If you want to take a deeper dive into a specific topic by viewing a narrative essay page and a curated timeline, click on “Stories.”

Read More

The U.S. Department of Agriculture defines the four main food groups.

Date: 1958

PH

The previous seven food groups are reduced to four: dairy, meat, vegetable/fruit, and bread/cereal. This focus on the four main food groups will go on to spread more widely than past dietary protocols from the U.S. Department of Agriculture, and will more thoroughly shape mainstream conversations about diet and health.