:Your earlier removal of validly-sourced material had no explanation or discussion whatsoever, and I reverted it on that basis without regard to content, because your action (blanking without explanation) is typical of vandals editing from anonymous IP addresses. WP:COMPETENCE is required here. Among the needed skills is the ability to use an edit summary, which I am happy to see you have done in your most recent edit. Also, you may want to have a look at Wikipedia:No personal attacks. ~