In this age of political correctness, even "Merry Christmas" may offend someone.  It is a little late for some but this list may help.  

Julie CroftActing Director, Employment Equity and Diversity, University of Wollongong writes:

Subject: Diversity

We all know that Christmas and the traditional Christian celebrations (which have not been fully detailed here) are approaching. But, there are other occasions and festivities happening in December and January, that you may not know about.  I have forwarded the list below so that you can appreciate just some of this diversity and be mindful and respectiful of the customs of all peoples in our community.  If I have missed any religious or other days of special note I apologise in advance.

21 December – Summer Solstice (Pagan)
26 December – Zarathosht Diso (Zoroastrian)
1  January – Feast of St Basil (Orthodox Christian)& Gantan-sai (shinto)
6 January – Feast of Theophany (Orthodox Christian)
7 January – Christmas Day (Orthodox Christian & Etheopian Rastafari)
13 January – Milan un Nabi (Islam) & Maghi (Sikh)
14 January – Makar Sankranti (Hindu)
15 January – Seijin Shiki (Shinto)
16-19 January – Mahayana New Year (Buddhist) & 16 Jan Tu B’Shevat (Jewish)
20 January – Timkat (Ethiopian Orthodox Christian)
31 January – Chinese New Year (Confucian, Daoist, Buddhist)

I hope you all enjoy time with family and friends on your special days.

Ed {Alas in my brief manner some I have offended with "Xmas" }