Two Sundays were held as Càisg. The second was distinguished only by a better feast than usual in the houses. The first Sunday was called “Big Easter” (_Càisg mhòr_), and the Sunday after it “Old Men’s Easter” (_Càisg nam bodach_), corresponding to the English Low Sunday. ALL-FOOLS’ DAY is variously known in the Highlands as “The Day of going on Fools’ errands” (_Latha na Gogaireachd_), “Cuckoo Day” (_Latha na Cuthaig_), and “The Day of Tricks” (_Latha nan Car_). Its observance is on the first of April, N.S., and this argues its very recent introduction into the Highlands. The tricks and practices of the day are the same as elsewhere, the sending of acquaintances on sleeveless errands. Sometimes, but only rarely, there is some ingenuity displayed in taking advantage of local and passing events to throw the most suspicious off their guard, and send them on fools’ messages. It is not difficult to impose on men with a serious face and a plausible story, when it entails but little trouble to see if so likely a story or so pressing a message is real. _Bailc na Bealltainn_. The fourteen days preceding May-day were known as _Bailc na Bealltainn_, “the balk or ridge of Beltane.” The sea is then as it were awakening, and is more obedient to the winds. _Balc_ means a ridge, also swelling, strength, _onfhadh_, _foghail_. The weather threatens frequently without breaking. “If warm May day be swollen [threatening], And it be dry the third day, And it be an east wind after that, There certainly will be fruit on trees.”[69] _Bealltainn_, MAY-DAY. The advent of summer is everywhere hailed with joy, and the day recognised as the first of the season is naturally one of the most important days in the calendar. Another day of equal importance in the Celtic year was the first of winter, and the names of the two days, _Bealltainn_ and _Samhainn_, cannot be traced, like so many other notations of the year, to ecclesiastical sources. Like the names _Faoilleach_ (the Storm month), and _Iuchar_ (the Hot month), they are best referred to Pagan times.