Ono visited Lennon’s childhood home and school in northern England’s Liverpool on Friday. She was welcomed by hundreds of students at Dovedale School, before she went to the semi-detached family home that Lennon shared with his aunt from 1945 to 1963.

The musician was shot outside his New York home in 1980, when he was 40 years old. He would have been 70 on Oct. 9.

Ono will travel from her home in New York to Iceland on Lennon’s birthday to light the Imagine Peace Tower, an illuminated memorial.