Hi EvangelCatholic, never been away though I wish I have as much time to post on this forum as you guys seem to have.
I think the question on pancakes is well answered. I have a
post on Lent and Easter practices if you are interested. Did you know pretzels and Japanese tempura are Lent food?
I am not aware of any pagan connection with Lent. But there are plenty of pagan practices around Lent time, as one would expect for spring time. If you are in London during spring equinox (March 20 this year), go for the druid celebrations in Primrose Hill or the Stonehenge (they are not the druids of old, of course but more a New Age religion). Note that our word for Easter comes from the name of an Anglo-Saxon goddess Äostre. English is alone in calling the season Easter - all the other languages call it Pascha.
On the Pre-Lent or -gesima Sunday,s I think I will be ruffling a few feathers here. While disputes over the calculation of the date of Easter are well known (and differences still persist today between East and West), there is an equally long-running disagreement in the West (more like confusion to me) over when Lent starts. Ash Wednesday was created to make the number of fasting days in Lent to be the special number of 40 - you never fast on Sundays. Before that, Lent started on the First Sunday of Lent (Quadragesimo Sunday), which only gives 36 fasting days. I have come across priests who still insist Lent is the forty days between First Sunday of Lent and Holy Thursday. Technically, they could be right as Holy Thursday mass belong liturgically to the Easter Triduum. It is all very confusing to me. I believe the Greek practice of pre-Lent also try to fit 40 days of fasting with their tradition of not fasting also on Saturdays.
In medieval Europe, there were many different days on when fasting starts. There is also the attempt to square it with the other special number of 70 (the more special numbers you can fit in, the better I guess

). Hence, Septuagesimo Sunday, although it is actually 63 days before Easter, and not 70 (I guess they cannot run the -gesimo Sundays for one more week to make 70 days as that would be to call the extra Sunday Octogesimo Sunday - somehow, Octogesimo doesnāt jive with 70 days before Easter

).
By 15th century, the practice was more or less standardised to start the fast on Ash Wednesday but the -gesimo Sunday liturgies remain on the liturgy books. To the practical Romans, this period then became the pre-Lent. I see it as the period of preparation for the period of preparation. I think Vatican 2 is right to do away this last vestige of the confusion over when Lenten fast starts.
Having said that, being the anti-uniformity Catholic that I am, I am happy for anyone who wishes to retain the tradition to do so and it is pleasing to see traditionalists keeping the practice alive at their
site.