The history of index cards
Index cards were first invented by Carl Linnaeus in the 18th century as a way to organize plant specimens. Over time, they became popular for note-taking and organizing information in various fields, from education to business.
The standard size of an index card
The standard size of an index card is 3 inches by 5 inches (7.62 cm by 12.7 cm). However, other sizes are available, such as 4 inches by 6 inches (10.16 cm by 15.24 cm).
The thickness of an index card
The thickness of an index card can vary, depending on the manufacturer and the quality of the cardstock. Generally, index cards range from 0.007 inches (0.18 mm) to 0.015 inches (0.38 mm) in thickness. Higher quality cards tend to be thicker and more durable.
Uses for index cards
Index cards can be used for a variety of purposes, including note-taking, making flashcards, organizing information, and even as a tool for creativity, such as writing prompts or storyboarding.
The future of index cards
While digital tools have gained popularity in recent years, there is still a place for analog tools such as index cards. Some individuals and businesses continue to use them for their simplicity and versatility. As long as there is a need for organization and information management, index cards are likely to remain a useful tool.
