I think that the seed packet was assuming that you would be planting the seeds into cold soil.

Germination is temperature-dependent. If the soil were about 55 degrees F, say, then it might have taken your broccoli 14 days to germinate.

However, at around 70 degrees, broccoli and other brassicas (kale, arugula, etc.) can germinate in two days! Especially if it is fresh seed.

I'm assuming these were germinated under your indoor light setup in warm conditions so all is well. Enjoy your Calabrese broccoli! :)

Oh, and don't worry about asking all these questions here on the forum, PARTICULARLY in the middle of February. Gardeners tend to be obsessive, and right now most of us are frustrated from not being able to go outside and properly frolick in our gardens! Reading seed catalogs, toying with early seedlings, and playing in worm compost only helps a bit--responding to questions on these boards is an outlet for our frustrated energy! :)

Thanks!! They were germinated in warm soil, no light. Now that they have sprouted I have them under the light. Still waiting on my tomatoes to do something, hehe.

It means you have good seeds. :)

Here is a good chart showing optimum germination temperatures for various seeds.

Here is a link that might be useful: temperature