at that time
Back then, at the time referred to in the past.
I'd been to Memphis before, but we stayed out of Memphis early on in the late 70s for obvious reasons. People were very sensitive about Elvis Presley, and my stage name obviously would be provocative to some people in that area at that time. Elvis Costello
The ALGOL compiler was probably one of the nicest pieces of code to come out at that time. I spent hours trying to fix and change the compiler. Working with it so closely affected the way I think about programming and had a profound influence on my style. Gary Kildall
There was something about the self-confession and self-confusion of Abstract expressionism – as though the man and the work were the same – that personally always put me off because at that time my focus was in the opposite direction. Robert Rauschenberg
We hear warmongering every day, every day we hear threats and attempts to scare us... We don't want war and never wanted, but at that time [i. e. during Nagorno-Karabakh war] we had to defend our Motherland. If the time comes again, this time our blow will be final and deadly. Serzh Sargsyan
Now Stan and I were still working in secret at that time but, because of this development, we had to inform the University of Utah because we thought that they might need to take patent protection. Martin Fleischmann
We've become much more casual and much more relaxed in social interactions, where there was a formality and maybe a kind of respect at that time that doesn't exist now. Radha Mitchell