The wording "and other traditions" is so inclusive that we may answer "holy days and other traditions are what constitutes Judaism."
To answer a little more specifically:
1) The holy days are part of Judaism, since they are a portion of the Torah (Leviticus ch.23). They're among God's commands. In addition, they remind us of what God did for us in the past; they inject happiness into our year, and they add to the cohesion of our families and communities.
2) Traditions are vital to Judaism, since without them the religion would be lifeless. It would be merely a historical curiosity like the hieroglyphics which have no living tradition. Without our tradition, the Hebrew Bible would be undecipherable in many of its oblique details.
I think this is just too big a question for me. I will say that within each of these traditions there isn't one simple explanation to compare with the simple explanations in the other traditions.
i think thier traditions are to dance
Judaism is monotheistic they believe in 1 God.
Purim is part of Judaism. Hassidim keep Purim just like other Jews.
I don't think there are any holiday traditions of Buddhism.
About Where do you think email will be in the future
positively.
i think hunting....
Some religion, I think it's Judaism pilgrimages to a river. I forget which river, though.
About Where do you think email will be in the future
One of the affects of terrorism in the future will be like the other people think is over but, it will happen again in the future.
It depends on who the "other people" are. There are many individuals who are think well of Jews, there are many who think ill of Jews, and there are many who just do not care enough to have formed an opinion about the Jews.