ECA admin @admin Active 2 days, 8 hours ago ActivityProfileGroups 1 PersonalMentionsFavoritesGroups Show: — Everything — Updates New Groups Group Memberships Group Updates sig15webmaster joined the group SIG-15 Crystallography in Art and Cultural Heritage 6 months, 3 weeks ago SIG-15 Crystallography in Art and Cultural Heritage Visit group sig15coordinator joined the group SIG-15 Crystallography in Art and Cultural Heritage 6 months, 3 weeks ago SIG-15 Crystallography in Art and Cultural Heritage Visit group ECA admin created the group SIG-15 Crystallography in Art and Cultural Heritage 6 months, 3 weeks ago SIG-15 Crystallography in Art and Cultural Heritage Visit group