While natural persons acquire legal personality "naturally", simply by being born (or before that, in some jurisdictions), juridical persons must have legal personality conferred on them by some "unnatural", legal process, and it is for this reason that they are sometimes called "artificial" persons. In the most common case (incorporating a business), legal personality is usually acquired by registration with a government agency set up for the purpose. In other cases it may be by primary legislation: an example is the Charity Commission in the UK. The United Nations Sustainable Development Goal 16 advocates for the provision of legal identity for all, including birth registration by 2030 as part of the 2030 Agenda.