▁science ▁companies ▁based ▁in ▁Massachusetts ▁Category : Res earch ▁support ▁companies ▁Category : X - ray ▁equipment ▁manufact ur ers ▁Category : L abor atory ▁equipment ▁manufact ur ers ▁Category : Te chn ology ▁companies ▁based ▁in ▁Massachusetts ▁Category : Man ufact uring ▁companies ▁based ▁in ▁Massachusetts ▁Category : Comp an ies ▁based ▁in ▁W alth am , ▁Massachusetts ▁Category : Man ufact uring ▁companies ▁established ▁in ▁ 2 0 0 6 ▁Category : Bi ote chn ology ▁companies ▁established ▁in ▁ 2 0 0 6 ▁Category : 2 0 0 6 ▁establish ments ▁in ▁Massachusetts ▁Category : Comp an ies ▁listed ▁on ▁the ▁New ▁York ▁Stock ▁Exchange ▁Category : Comp an ies ▁formed ▁by ▁mer ger <0x0A> </s> ▁The ▁Bah á ʼ í ▁Fa ith ▁has ▁eleven ▁holy ▁days , ▁which ▁are ▁important ▁anni vers aries ▁in ▁the ▁history ▁of ▁the ▁religion . ▁On ▁nine ▁of ▁these ▁holy ▁days , ▁work ▁is ▁susp ended . ▁There ▁is ▁no ▁fixed ▁format ▁for ▁any ▁of ▁the ▁holy ▁days , ▁and ▁Bah á ʼ í ▁communities ▁organ ize ▁their ▁own ▁comm emor ative ▁meet ings . ▁ ▁All ▁but ▁two ▁of ▁the ▁holy ▁days ▁are ▁scheduled ▁ann ually ▁on ▁fixed ▁dates ▁in ▁the ▁Bad í ʻ ▁Calendar . ▁The ▁T win ▁Holy ▁B irth days ▁are ▁scheduled ▁ann ually ▁according ▁to ▁a ▁lun ar ▁calculation . ▁ ▁Besides ▁the ▁eleven ▁holy ▁days , ▁Bah á ʼ ís ▁also ▁celebr ate ▁A yy ám - i - H á , ▁a ▁period ▁of ▁several ▁extra ▁days