The database currently contains 4611 historical events.
- “The Morning After,” the title song from the film “The Poseidon Adventure,” reached No. 1 on the U.S. Billboard Hot 100 and began a two-week run at the top.
- The Carpenters were at No. 1 on the Cashbox chart with “Yesterday Once More.” The song also reached No. 2 in the UK and on the Billboard Hot 100 and became their best-selling recording.
- The song “Louisiana Woman, Mississippi Man” by Conway Twitty and Loretta Lynn reached No. 1 on the country chart.
- Diana Ross's song “Touch Me in the Morning” reached No. 1 on the Billboard Hot 100, where it remained for one week. It spent 21 weeks on the chart in total, her longest chart run up to that point. It was her second US No. 1 single.
- Elvis Presley's album Elvis reached No. 52 on the US album chart.
- Jethro Tull reached No. 1 on the US Billboard 200 with their sixth studio album, A Passion Play. It was their second album to top the US chart. The album also reached No. 1 in Canada, while reaching No. 16 in the UK. Because of high British taxes, the album was recorded at Château d'Hérouville studio in France on the recommendation of their managers and accountants.
- Marvin Gaye reached No. 1 on the Billboard R&B chart with "Let's Get It On," starting a multi-week run at the top.
- The duo Peters and Lee reached No. 1 on the UK album chart with We Can Make It. It was their first and only album to top the chart.
- The Pointer Sisters achieved their first chart success with “Yes We Can Can.”
- According to Cashbox magazine, Wings had the best-selling single in the US with “Live and Let Die.” The song was produced by George Martin and written by Paul McCartney specifically for the James Bond film of the same name. It was nominated for a Grammy Award.
- Donny Osmond began a four-week run at number one on the UK singles chart with his version of “Young Love”. It was his third and final UK chart-topper; the same song had also been a hit for Tab Hunter in 1957.
- Stories, led by former Left Banke keyboardist Michael Brown, reached number one on the US Billboard Hot 100 and Cash Box Best Sellers with their version of Hot Chocolate's “Brother Louie”, beginning a two-week run at the top and overtaking Wings' “Live And Let Die”. The prominent lead vocal was sung by Ian Lloyd, who later worked with Billy Joel, Foreigner and Peter Frampton.
- Diana Ross reached No. 1 on the US chart with “Touch Me in the Morning”, overtaking Wings' “Live and Let Die” and Stories' “Brother Louie”.
- The top albums of 1973 included Chicago VI at No. 1, Pink Floyd's The Dark Side of the Moon at No. 2, Foreigner at No. 4, The Allman Brothers Band's Brothers and Sisters at No. 4, Diana Ross's Touch Me in the Morning, Jethro Tull's A Passion Play, Deep Purple's Machine Head, Grand Funk's We're An American Band, Deep Purple's Made in Japan and Sly & the Family Stone's Fresh.
- “Let's Get It On” by Marvin Gaye remained at No. 1 on the R&B chart for a fourth week.