HTML Evolution
- Level 0: pre-1992
- structure (P, H1-6, DL, UL, PLAINTEXT)
- hypertext (A, BASE)
- Level 1: 1992-mid`93
- SGML rules restored (Dan Connolly)
- Character highlighting added
- IMG tag added (Marc Andreessen)
- Level 2: late 1993
- FORM tags added (Eric Bina, Marc A.)