5.10 Common confusions As noted at the beginning of this section, from a technical point of view one of the main problems confronting students is getting a grip on the name changes that have occurred. In addition, the articles in the founding Treaty of Rome have had their numbering changed, as the Treaty of Amsterdam sought to regularise the changes brought about by various amendments (including alphabetical amendments made by the TEU 1992). This has impacted at the very basic level of textbooks. Books prior to 1993 will have a different set of names to those after and books between 1993 and 1997 will not reflect the number changes. At present books referring to the articles in the Treaty of Rome use the following method: the new number of the article in the newly named treaty is given, with the old article number in brackets immediately after. For example, Article 249 (189) EC Treaty and in some cases the texts will only refer to the EC Treaty as EC. Figure 5.21, below, puts some of these confusions together to assist in defusing confusion! Figure 5.21: name and numbering changes introduced by the Treaty of European Union (TEU 1992), also known as the Treaty of Maastricht